Country Singer Mindy McCready Dead at 37












Mindy McCready, the country singer who soared to the top of the charts with her debut album, "Ten Thousand Angels," but struggled with substance abuse, served time in jail and fought a lengthy battle with her mother over custody of her son has died of what appears to be a self-inflicted gunshot wound, police said. She was 37.


Deputies from the Cleburne County Sheriff's Office were dispatched to a report of gun shots fired at McCready's Heber Springs, Ark., home at around 3:30 p.m. today.


There they found McCready on the front porch. She was pronounced dead at the scene from what appeared to be a single self-inflicted gunshot wound, according to a statement from the sheriff's office.


PHOTOS: In Memoriam 2013


McCready's boyfriend, David Wilson, died in January of a self-inflicted gunshot wound. McCready was ordered to enter rehab shortly after Wilson's death, and her two children, Zander, 6, and 9-month-old Zayne were taken from her. She was released after one day to undergo outpatient care.


McCready scored a number-one Billboard country hit in 1996 with "Guys Do It All the Time," but in recent years, the country crooner has received more media attention for her troubled personal life than her music.


She has been arrested multiple times on drug charges and probation violations and has been hospitalized for overdoses several times, including in 2010, when she was found unconscious at her mother's home after taking a painkiller and muscle relaxant.






Angela Weiss/Getty Images











Country Singer Mindy McCready Dead at Age 37 Watch Video









Mindy McCready Details Moment Cops Found Her, Son Watch Video







RELATED: Mindy McCready: Police Take Son


Her mother, Gayle Inge, was appointed to be her son Zander's legal guardian in 2007 after McCready was arrested for violating probation on a drug-related charge. The boy's father is McCready's ex-boyfriend Billy McKnight.


Following a custody hearing in May 2011, McCready released a statement, saying, "We have progressed in a positive manner to reunite me and my son, Zander. I feel very optimistic this will happen in the near future."


But just six months later, in November 2011, was accused of violating a court order for failing to bring Zander back to her mother in Florida after a visit. The boy was placed in foster care while McCready and her mother worked out the custody dispute.


McCready's struggle with substance abuse was broadcast in 2010 on the third season of "Celebrity Rehab with Dr. Drew."


McCready also claimed to have carried on a decade-long affair with baseball star Roger Clemens that began was she was 15 years old and he was 28. Clemens denied that the relationship was sexual in nature.


"You know what, I don't think I'm ever going to be one of those people that has a normal, quiet existence," McCready told ABC Radio in 2010. "I've been chosen for some reason to be bigger and larger than life in every way. Negative and positive."


McCready, who was born and raised in southern Florida, moved to Nashville when she was 18 to start her music career.


Within a few months, she was starting to work with producer David Malloy, who got her tapes to RLG Records. The company signed her to a contract after seeing her in concert, giving her a record deal less than a year after her arrival in Nashville.


Her debut album, "Ten Thousand Angels," went gold within six months of its release in April 1996, and eventually went multi-platinum. Two more followed: "If I Don't Stay the Night," in 1997; and "I'm Not So Tough" in 1999.


Her most recent album, "I'm Still Here," featuring new versions of her early hits "Ten Thousand Angels" and "Guys Do It All the Time," was released in March 2010.



Read More..

False memories prime immune system for future attacks









































IN A police line-up, a falsely remembered face is a big problem. But for the body's police force – the immune system – false memories could be a crucial weapon.












When a new bacterium or virus invades the body, the immune system mounts an attack by sending in white blood cells called T-cells that are tailored to the molecular structure of that invader. Defeating the infection can take several weeks. However, once victorious, some T-cells stick around, turning into memory cells that remember the invader, reducing the time taken to kill it the next time it turns up.












Conventional thinking has it that memory cells for a particular microbe only form in response to an infection. "The dogma is that you need to be exposed," says Mark Davis of Stanford University in California, but now he and his colleagues have shown that this is not always the case.












The team took 26 samples from the Stanford Blood Center. All 26 people had been screened for diseases and had never been infected with HIV, herpes simplex virus or cytomegalovirus. Despite this, Davis's team found that all the samples contained T-cells tailored to these viruses, and an average of 50 per cent of these cells were memory cells.












The idea that T-cells don't need to be exposed to the pathogen "is paradigm shifting," says Philip Ashton-Rickardt of Imperial College London, who was not involved in the study. "Not only do they have capacity to remember, they seem to have seen a virus when they haven't."












So how are these false memories created? To a T-cell, each virus is "just a collection of peptides", says Davis. And so different microbes could have structures that are similar enough to confuse the T-cells.












To test this idea, the researchers vaccinated two people with an H1N1 strain of influenza and found that this also stimulated the T-cells to react to two bacteria with a similar peptide structure. Exposing the samples from the blood bank to peptide sequences from certain gut and soil bacteria and a species of ocean algae resulted in an immune response to HIV (Immunology, doi.org/kgg).












The finding could explain why vaccinating children against measles seems to improve mortality rates from other diseases. It also raises the possibility of creating a database of cross-reactive microbes to find new vaccination strategies. "We need to start exploring case by case," says Davis.












"You could find innocuous pathogens that are good at vaccinating against nasty ones," says Ashton-Rickardt. The idea of cross-reactivity is as old as immunology, he says. But he is excited about the potential for finding unexpected correlations. "Who could have predicted that HIV was related to an ocean algae?" he says. "No one's going to make that up!"












This article appeared in print under the headline "False memories prime our defences"




















































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.









































































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More youths doing volunteer work in North West District






SINGAPORE: More youths have stepped up to do volunteer work in Singapore's North West District. Last year, the number more than doubled, from about 470 to some 1,000.

Volunteers' Night was held on Sunday evening to show appreciation to those who have helped.

Members of Parliament from Holland-Bukit Timah GRC were present to show their support.

This year, the district aims to boost the number of volunteers of all ages from the current 2,880 to 4,000.

Programmes to assist the needy and bond residents will be beefed up, with a focus on building a caring and healthy community.

Mayor of North West District Dr Teo Ho Pin said: "We'll be engaging a lot of volunteers, especially from companies and the community to come forward to help our needy families, especially (those living in) rental blocks, so we're expecting about maybe 500, 600, or even 800 volunteers in that area."

The district had 1,250 volunteers across various age groups in 2011, which doubled in the following year.

- CNA/xq



Read More..

Internet rules: More cats. LESS CAPS




















Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet


Our 12 Rules of the Internet





<<


<





1




2




3




4




5




6




7




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9




10




11




12




13



>


>>







STORY HIGHLIGHTS


  • Yes, there ARE some rules to the Internet, though, for now they're mainly an inside joke

  • Some rules based on pop culture, some have become Web memes

  • Other rules ominously quote Anonymous

  • Is there a need for rules on the vast and wild Web? Depends on where you stand




Editor's note: In the gallery above, we've selected a handful of our favorite Internet rules, or truths. (You might recognize a few.) What are some of yours? Tell us in the comments. We'll feature some of the best on CNN.


(CNN) -- Hello!


Welcome to the Internet. It's a big place, so let me show you around.


You're approaching Oversharing Pass, where residents routinely post too much information. The Facebook Gorge and Twitter Triangle are particularly nefarious time-sucks. Restraint is advised.


Up ahead is Hyperbole Junction, which is the Worst. Spot. Ever. We recommend that you maintain an even keel and stay to the center; the extreme left and right can be dangerous.


And over there is the infamous Lair of Sociopaths, the home of trolls and loners who mercilessly mock everyone who enters their territory. Watch your step: They may trip you up and you'll fall into the Chasm of Lulz.


Our world isn't all dangerous, of course. You may visit Squee City, where images of cute cats and laughing babies fill the landscape. You'll also meet countless kind strangers, hilarious raconteurs and hard-working fact-checkers. They make it all worthwhile.


Hmm. Maybe it would be easier if you had a guide -- you know, some rules to help you find your way.


What, you didn't know there are rules of the Internet?


Of course there are rules. How do you think we maintain order around here?


A parody of rules


That's a joke.


But there really are some rules of the Internet -- even if they, too, began as kind of a joke.


According to the site KnowYourMeme.com, the Rules began around 2006 as a guide for the Internet collective Anonymous and emerged on the old Encyclopedia Dramatica, a bawdy meme catalog. Soon a version emerged on 4chan, an online bulletin board where most users post anonymously, says Jamie Cohen, director of web/digital media at Hofstra University's School of Communication.


"Chris Poole (4chan's founder) kind of designed it, kind of like a Netiquette rules," he says, describing the unspoken code of conduct that lubricates Internet discourse. (Poole has attributed the rules to Gaia Online, a role-playing community.)


But the rules of the Internet deliberately mocked many of those conventions. The self-reflexive parody fit perfectly with its community's attitude, points out Anthony Rotolo, a professor at Syracuse University's School of Information Studies.


"These jokes are meant to comment on something happening in the world," he says. "Later they get accepted as truisms or become a meme."


The absurdity has been reflected even in the supposed number of rules. Though the best-known first version claimed there were 50 rules, only 18 were listed. Number 1 was initially "Do not talk about Rules 2-33"; no Rules 2-33 were on the list.


The sarcastic attitude was reinforced by the kicker found on Encyclopedia Dramatica. It was a parody of Wikipedia's stub language: "This article is crap. You can help by completely re-writing it."


'Fight Club' and Monty Python


Very quickly, the lists started multiplying and expanding, liberally borrowing from comedy, Web culture and math-science tropes. On one list, a few were designated by complex numbers and mathematical symbols. Some were observations; others were directives.




Some have traced the Internet rules to Chris Poole, the founder of 4chan.



Two rules were taken from "Fight Club": "You do not talk about 4chan (or "/b/," 4chan's random, free-wheeling bulletin board) and "You DO NOT talk about 4chan." One version of Rule 6 stated "There is no Rule 6," which is from a Monty Python sketch. Rule 42, "Always bring a towel," was drawn from Douglas Adams' "The Hitchhiker's Guide to the Galaxy" series. (If you have to ask, read the books.) "Profit," Rule 49, came from "South Park."


Other rules went the reverse direction and became part of mainstream culture. Rule 34 -- "If it exists, there is porn of it" -- is likely the most famous. But there's also "Pics or it didn't happen" (Rule 30), "For every given male character, there is a female version of that character; conversely for every given female character, there is a male version of that character" (Rule 63) and, of course, the corollary to Rule 34 -- "If no porn of it exists at the moment, it will be made" (Rule 35).


Most retained a sense of humor, riffing off established rules and occasionally ending with a giggly "No exceptions."


But a handful were, and remain, as serious as a judge -- notably the three directly about Anonymous (commonly Rules 3-5):


- We are Anonymous.


- We are legion.


- We do not forgive, we do not forget.


The overall Internet rules may have started as a joke, but such ominous language from Anonymous speaks to some of the paradoxes of the Web:


Rules? Why do we need some stinkin' rules?


After all, rules can be helpful -- or divisive. They can create community -- or subvert it.


Even Anonymous, the activist group itself, cuts both ways, says Rotolo. When it hacked the extremist Westboro Baptist Church, many people cheered. But when it goes after less unpopular targets, some cry vigilantism.


Cohen says that the rules themselves try to have it both ways. They're funny until someone gets hurt.


They "play more of a game type of role. They can be bent or broken or cheated or moved around, as you would in any game that has no physical reaction," he says. "That doesn't take into account ever the result of real people being affected by this -- such as teenagers, children, anybody who's seeing things that they shouldn't."


He adds, "There's a lot of rules in there that work for (the creators) more than anyone else. Until they become victims of their own thing, they don't know how powerful the rules are."


Evolving from the Wild West


Of course, the Internet isn't that old, and we're still in its Wild West era in many ways. As the technology evolves from a handful of hackers on Usenet bulletin boards to billions of users on officially sponsored sites, the customs -- the rules -- of the Web will evolve with it.


But we're not talking about the kinds of changes that your family makes to the rules of Monopoly (no, Free Parking is NOT for the pool of money acquired via Chance and Community Chest). We're talking something more expansive: All the established customs of our carbon-based life forms, making way for the instantaneous and virtual modes of silicon-based electronics.


Who knows what new rules may be written?


"When you're in the midst of social change, it's impossible to determine where it's going," says Peter S. Vogel, a former programmer who's now a Dallas-based attorney. "And I think we are in the greatest social change in the history of humans, because there are no boundaries of geography or time."


We haven't even sorted out what happens when the differences in local culture meet global technology. Bruce Umbaugh, a philosophy professor at Webster University in St. Louis who teaches a course on philosophy and technology, argues that not all parts of the world are as tolerant or open-minded as Western democracies.



There's a lot of rules in there that work for (the creators) more than anyone else.
Jamie Cohen, Hofstra University



"There are a lot of other places in the world that are actively using the technology of the Internet to control the free communication among citizens, and to identify critics of the government and hurt them," he says. "We need to be mindful in what we advocate from our perspective that the tools that are implemented on the Net are tools for the global Net."


In other words, citizens of other countries already face actual, enforceable rules -- unlike the folkways established by Web users in the West. Witness the frictions of the Arab Spring, or the restrictions of societies such as North Korea.


It's the kind of perspective that provides a different context for the issues raised by a libertarian, anything-goes Internet. It's hard enough to stop "Star Wars" comment boards from devolving into flamebaiting, meme-generating files of NSFW Yodas.


So for now, we're still making our way through the Series of Tubes, and nobody knows where the boundaries lie. We joke, we grimace and we marvel at the creativity of the hive mind. The Internet is a big place, and countless cultures have set up residence. Eventually, what is now humor may lose its zing; what are now customs may become laws.


Will the rules ever become The Rules? Maybe some future generation will figure out the true guideposts of Internet life, and the singularity will be upon us.


Nah. It'll never happen.


What did we miss? Share your rules for the internet below in the comments. We'll feature some of the best on CNN.







Read More..

Dozens of pro-Dorner protesters rally at LAPD HQ

LOS ANGELES Dozens of protesters rallied outside Los Angeles police headquarters Saturday in support of Christopher Dorner, the former LAPD officer and suspected killer of four who died after a shootout and fire this week at a mountain cabin following one of the biggest manhunts in recent memory.

Protesters told the Los Angeles Times they didn't support Dorner's deadly methods, but objected to police corruption and brutality, and believed Dorner's claims of racism and unfair treatment by the department. Many said they were angered by the conduct of the manhunt that led to Dorner's death and injuries to innocent bystanders who were mistaken for him.





Play Video


New details of Dorner's final hours




Michael Nam, 30, who held a sign with a flaming tombstone and the inscription "RIP Habeas Corpus," said it was "pretty obvious" police had no intention of bringing Dorner in alive.

"They were the judge, the jury and the executioner," Nam said. "As an American citizen, you have the right to a trial and due process by law."

During the hunt for Dorner, LAPD Chief Charlie Beck called for Dorner's surrender and said he didn't want to see the suspect or anyone else injured.

Dorner was already believed to have killed three people when he was cornered Tuesday at the cabin near Big Bear Lake, and during the standoff shot and killed a San Bernardino County sheriff's deputy, authorities said.





Play Video


Reporter records gunfight in Dorner capture effort




Only after calls for surrender and use of milder tear gas did deputies launch pyrotechnic gas canisters into the cabin, and the subsequent fire was not intentional, the Sheriff's Department said.

Dorner died of a self-inflicted gunshot wound at the end of the standoff, sheriff's officials said.

The 33-year-old has already inspired a burgeoning subculture of followers. While most don't condone killing, they see him as an outlaw hero who raged against powerful forces of authority, and some even question whether he really died.

Tributes include a ballad titled "El Matapolicias," or "The Police Killer," penned by a Mexican crooner with lyrics paying homage to Dorner, and a YouTube clip showing excerpts from a video game titled "Christopher Dorner's Last Stand Survival Game" whose opening frame declares him "A True American Hero."

Read More..

Gun Ban Would Protect More Than 2,200 Firearms












Congress' latest crack at a new assault weapons ban would protect more than 2,200 specific firearms, including a semi-automatic rifle that is nearly identical to one of the guns used in the bloodiest shootout in FBI history.



One model of that firearm, the Ruger .223 caliber Mini-14, is on the proposed list to be banned, while a different model of the same gun is on a list of exempted firearms in legislation the Senate is considering. The gun that would be protected from the ban has fixed physical features and can't be folded to be more compact. Yet the two firearms are equally deadly.



"What a joke," said former FBI agent John Hanlon, who survived the 1986 shootout in Miami. He was shot in the head, hand, groin and hip with a Ruger Mini-14 that had a folding stock. Two FBI agents died and five others were wounded.



Hanlon recalled lying on the street as brass bullet casings showered on him. He thought the shooter had an automatic weapon.



Both models of the Ruger Mini-14 specified in the proposed bill can take detachable magazines that hold dozens of rounds of ammunition. "I can't imagine what the difference is," Hanlon said.



President Barack Obama has called for restoring a ban on military-style assault weapons and limiting the size of ammunition magazines.








Gun Owners Rally State Capitals Across Country Watch Video










A bill introduced last month by Sen. Dianne Feinstein, D-Calif. would ban 157 specific firearms designed for military and law enforcement use and exempt others made for hunting purposes. It also would ban ammunition magazines that hold more than 10 rounds.



Yet there are firearms that would be protected under Feinstein's proposal that can take large capacity magazines like the ones used in mass shootings that enable a gunman to fire dozens of rounds of ammunition without reloading.



Feinstein said in a written response to questions from The Associated Press that the list of more than 2,200 exempted firearms was designed to "make crystal clear" that the bill would not affect hunting and sporting weapons.



The December shooting at an elementary school in Newtown, Conn., that left 26 students and educators dead forced Washington to focus on curbing gun violence, a risky political move not tried in decades.



The gun industry, which is fighting any sort of ban, says gun ownership in the U.S. is the highest it's ever been, with more than 100 million firearms owners.



Obama and Vice President Joseph Biden have traveled around the country in an effort to gain support for new laws. Feinstein's proposal is the only sweeping piece of legislation designed to ban assault weapons currently being considered.



But some gun experts say the lists of banned and exempted firearms show a lack of understanding and expertise of guns.



"There's no logic to it," said Greg Danas, president of a Massachusetts-based expert witness business and firearms ballistic laboratory. "What kind of effect is it going to have?"



Feinstein's bill defines an assault weapon as a semi-automatic firearm with a detachable magazine that has one of several military characteristics that are specified in her legislation. Examples of those characteristics include a pistol grip, which makes a firearm easier to hold, and a forward grip, which makes the firearm easier to stabilize to improve accuracy. The definition is similar to the one in Congress' original ban on assault weapons, which went into effect in 1994 and was widely criticized for outlawing firearms based on cosmetic features.





Read More..

False memories prime immune system for future attacks









































IN A police line-up, a falsely remembered face is a big problem. But for the body's police force – the immune system – false memories could be a crucial weapon.












When a new bacterium or virus invades the body, the immune system mounts an attack by sending in white blood cells called T-cells that are tailored to the molecular structure of that invader. Defeating the infection can take several weeks. However, once victorious, some T-cells stick around, turning into memory cells that remember the invader, reducing the time taken to kill it the next time it turns up.












Conventional thinking has it that memory cells for a particular microbe only form in response to an infection. "The dogma is that you need to be exposed," says Mark Davis of Stanford University in California, but now he and his colleagues have shown that this is not always the case.












The team took 26 samples from the Stanford Blood Center. All 26 people had been screened for diseases and had never been infected with HIV, herpes simplex virus or cytomegalovirus. Despite this, Davis's team found that all the samples contained T-cells tailored to these viruses, and an average of 50 per cent of these cells were memory cells.












The idea that T-cells don't need to be exposed to the pathogen "is paradigm shifting," says Philip Ashton-Rickardt of Imperial College London, who was not involved in the study. "Not only do they have capacity to remember, they seem to have seen a virus when they haven't."












So how are these false memories created? To a T-cell, each virus is "just a collection of peptides", says Davis. And so different microbes could have structures that are similar enough to confuse the T-cells.












To test this idea, the researchers vaccinated two people with an H1N1 strain of influenza and found that this also stimulated the T-cells to react to two bacteria with a similar peptide structure. Exposing the samples from the blood bank to peptide sequences from certain gut and soil bacteria and a species of ocean algae resulted in an immune response to HIV (Immunology, doi.org/kgg).












The finding could explain why vaccinating children against measles seems to improve mortality rates from other diseases. It also raises the possibility of creating a database of cross-reactive microbes to find new vaccination strategies. "We need to start exploring case by case," says Davis.












"You could find innocuous pathogens that are good at vaccinating against nasty ones," says Ashton-Rickardt. The idea of cross-reactivity is as old as immunology, he says. But he is excited about the potential for finding unexpected correlations. "Who could have predicted that HIV was related to an ocean algae?" he says. "No one's going to make that up!"












This article appeared in print under the headline "False memories prime our defences"




















































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.




































All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.


If you are having a technical problem posting a comment, please contact technical support.








Read More..

PM Lee urges couples to have confidence in S'pore's future






SINGAPORE: Prime Minister Lee Hsien Loong said it is important for couples to have confidence in Singapore's future and ultimately want Singapore to be the best place to settle down and raise children.

He was speaking at the Lunar New Year dinner at his Teck Ghee ward on Saturday evening.

He said: "Here, your children will get good education, will have good opportunities, that here we can build a home together. A home where we feel Singaporean, a home where we can have opportunities, a home where we can help look after one another, and make tomorrow better than today."

The government recently announced a Marriage and Parenthood package that aims to help Singaporeans settle down and raise children.

However, Mr Lee noted that parents are worried about childcare arrangements.

He said: "It's not easy because a lot of couples now, both parents are working and cannot always rely on grandparents to look after their kids because the grandparents may be older, may no longer be in good health, may not have the strength to take care of the grandchildren anymore. So, we need infant care and childcare facilities."

Mr Lee said building more childcare facilities will take time. He also said the centres can be set up quickly, but good teachers take time to train.

He added what is most important is to make it easier for parents to spend time with their children.

Mr Lee said: "So, we have paternity leave, we have shared parental leave, and these are big steps forward. We are also promoting good work-life balance, flexible work arrangements, and I think if we can do that, then that's the best hong bao which parents can give their children - our love and attention. I hope these measures will encourage couples to marry and to have more children."

Mr Lee said he is confident that Singapore can be transformed into a better place and next generation will do its part to improve it.

- CNA/xq



Read More..

Russia starts meteor clean-up






STORY HIGHLIGHTS


  • NEW: Divers find no trace of meteorite in a frozen lake near Chelyabinsk, state media report

  • NEW: Witness says flash shone "like 10 suns," felt shock wave pass through his body

  • More than 4,000 buildings, mostly apartment blocks, were damaged, reports say

  • The meteor released a 500-kiloton blast, NASA officials say




Chelyabinsk, Russia (CNN) -- A day after a spectacular meteor blast shook Russia's Urals region, the clean-up operation got under way Saturday in the hard-hit Russian city of Chelyabinsk.


Although some buildings were unscathed when the sonic waves from the Friday morning explosion reverberated through the region, others lost some or most windows.


More than 1,000 people were injured, including more than 200 children, according to news reports. Many of them were hit by flying glass.


Most of those hurt were in the Chelyabinsk region; the majority of injuries are not thought to be serious.


Altogether more than 4,000 buildings, mostly apartment blocks, were damaged and 200,000 square kilometers (77,220 square miles) of glass were broken, the state-run RIA Novosti news agency cited the Chelyabinsk regional emergencies ministry as saying Saturday.


Local officials have estimated the damage at more than 1 billion rubles (more than $33 million), RIA Novosti said.


With temperatures dipping well below freezing at night, the need to fix windows left gaping by the blast is urgent.


The city of Chelyabinsk was functioning normally Saturday as the repair work began.


Many believe it was a lucky escape as fragments of the meteor came raining down.










West of the city, authorities sealed off a section of a frozen lake where it's believed a sizable meteorite crashed through the ice.


But a team of divers has found no trace of any meteorite in the lake, an emergencies ministry spokeswoman told Itar-Tass on Saturday.


Opinion: Don't count 'doomsday asteroid' out yet


The meteor was a once-in-a-century event, NASA officials said, describing it as a "tiny asteroid."


The space agency revised its estimate of the meteor's size upward late Friday from 49 feet (15 meters) to 55 feet (17 meters), and its estimated mass from 7,000 tons to 10,000 tons.


The space agency also increased the estimated amount of energy released in the meteor's explosion from about 300 to nearly 500 kilotons. By comparison, the nuclear bomb the United States dropped on Hiroshima in 1945 released an estimated 15 kilotons of energy.


The whole event, from the meteor's atmospheric entry to its disintegration in the air above central Russia, took 32.5 seconds, NASA said.


About 20,000 emergency response workers were mobilized Friday, RIA Novosti reported.


Russian Emergencies Minister Vladimir Puchkov arrived in Chelyabinsk on Friday evening to take stock of the situation, Itar-Tass reported.


Hospitals, kindergartens and schools were among the buildings affected by the blast, said Vladimir Stepanov of the National Center for Emergency Situations at the Russian Interior Ministry.


Saving Earth from asteroids


The national space agency, Roscosmos, said scientists believe one meteoroid entered the atmosphere, where it burned and disintegrated into fragments.


Amateur video footage showed a bright white streak moving rapidly across the sky before exploding with an even brighter flash and a deafening bang.


The explosion occurred about 9:20 a.m. local time, as many people were out and about.


Russians captured vivid images, many using dash cameras inside their vehicles.


Dash cameras are popular in Russia for several reasons, including possible disputes over traffic accidents and the corrupt reputations of police in many areas. Drivers install the cameras for their own protection and to document incidents they could be caught in.


Denis Kuznetsov, a 23-year-old historian from Chelyabinsk, told CNN via e-mail that he had heard and felt the shockwave despite being far from the center of the city.


At first there was a blinding flash lasting several seconds, which made him want to shut his eyes. The light shone "like 10 suns," he said. "This is no exaggeration."


Then he experienced what felt like "a push," as a sound wave passed through his body. "For some seconds I simply stood," amid the sound of breaking glass, he said.


After calming his parents, Kuznetsov tried to call friends, but all cellphone coverage was down. The internet still worked, however, and he managed to reach a friend in the city center who told of emergency responders heading into the streets.


At first, confusion was widespread, Kuznetsov said, with many people believing the boom had to do with a satellite or plane. But within an hour or so, news broadcasts declared it was a meteorite.


"There was no panic. All behaved quietly," he said.


Schools and many offices closed. Kuznetsov monitored the news, as the reported number of victims "grew hour by hour," he said. "Thank God no one died."


CNN iReporter Max Chuykov saw the meteor trail from the city of Yekaterinburg. He shared on Instagram that it was close to the ground.


Ekaterina Shlygina posted to CNN iReport and wrote on Instagram: "Upon Chelyabinsk a huge fireball has exploded. It wasn't an aircraft."


When the Quadrantid meteor shower hit its peak


Five regions of Russia, one of them Chelyabinsk, are thought to have been affected, Itar-Tass said. RIA Novosti cited emergencies ministry officials as saying three regions and Kazakhstan


NASA said on its website that the meteor was the largest reported since 1908, when the famous Tunguska event took place in remote Siberia.


In that incident, an asteroid entered the atmosphere and exploded, leveling about 80 million trees over an area of 820 square miles -- about two-thirds the size of Rhode Island -- but leaving no crater.


"We would expect an event of this magnitude to occur once every 100 years on average," said Paul Chodas of NASA's Near-Earth Object Program Office at the Jet Propulsion Laboratory in California.


"When you have a fireball of this size, we would expect a large number of meteorites to reach the surface, and in this case there were probably some large ones."


NASA estimates 4,700 'potentially hazardous' asteroids


In what astronomers said was an unrelated coincidence, a larger asteroid, called 2012 DA14, passed relatively close to Earth around 2:24 p.m. ET Friday.


Stargazers in Australia, Asia and Eastern Europe could see the asteroid with the aid of a telescope or binoculars, but it never got closer than 17,100 miles to the planet's surface.


The Russian meteor was about one-third the size of the asteroid. The two bodies were on very different trajectories, scientists said.


CNN's Phil Black reported from Chelyabinsk and Laura Smith-Spark wrote and reported in London.






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Chicago calls for tougher gun laws, but has no room for more prisoners

(CBS News) CHICAGO - Last December, minutes after he allegedly shot at a neighbor, Julian Gayles was caught by Chicago police. Gayles, 22, already had a record of gun crimes and parole violations, but had spent little time behind bars. Since 2009, he has been sentenced to seven years in jail, but has served just two.

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Gayles was on parole when CBS News witnessed his arrest by police commander Leo Schmitz and is now in custody again, awaiting trial.

Chicago police superintendent Gary McCarthy wants such offenders to face a mandatory minimum sentence.

"This has to stop," McCarthy said. "Gun offenders have to do significant jail time."

Chicago already has some of the toughest gun laws in the country. This week, Mayor Rahm Emanuel called for making them even tougher, with minimum mandatory sentences for gun violations.


Cook Country Sheriff Tom Dart


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CBS News

But Cook Country Sheriff Tom Dart says he doesn't have the cells to hold more inmates.

"I mean, we are at capacity right now," Dart said. "The state prison system is beyond capacity. You talk to them right now, they haven't had a population like this in decades. And there's no place to put 'em."

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Dart runs the largest county jail in the country. Nearly 10,000 inmates -- including 300 prisoners -- living in a former cafeteria and some sleeping on the prison hospital's floor.

"This is not something that you would design, " said Dart. "Frankly at this time this should be a building that we should have empty right now at this time of the year. There should be no one in it. But because of our population explosion, this is full."

Experts say the prison population would swell by thousands if mandatory minimum sentences came to pass for gun violations.

"We can't have this irrational type of notion that there's magic jail cells all over the place that are all sitting there empty, " said Dart. "It's as if all of a sudden we just raise penalties and these people get shipped off to the moon or something. It's like, 'No, we know where we need to put 'em,' and we need money to fund that."

But Illinois doesn't have the money and has actually been closing prisons to save money so it can reduce the $9 billion it owes in unpaid bills.

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