Armstrong Admits to Doping, 'One Big Lie'

Lance Armstrong, formerly cycling's most decorated champion and considered one of America's greatest athletes, confessed to cheating for at least a decade, admitting on Thursday that he owed all seven of his Tour de France titles and the millions of dollars in endorsements that followed to his use of illicit performance-enhancing drugs.

After years of denying that he had taken banned drugs and received oxygen-boosting blood transfusions, and attacking his teammates and competitors who attempted to expose him, Armstrong came clean with Oprah Winfrey in an exclusive interview, admitting to using banned substances for years.

"I view this situation as one big lie that I repeated a lot of times," he said. "I know the truth. The truth isn't what was out there. The truth isn't what I said.

"I'm a flawed character, as I well know," Armstrong added. "All the fault and all the blame here falls on me."

In October, the U.S. Anti-Doping Agency issued a report in which 11 former Armstrong teammates exposed the system with which they and Armstrong received drugs with the knowledge of their coaches and help of team physicians.

George Burns/Courtesy of Harpo Studios, Inc./AP Photo

Lance Armstrong-Winfrey Interview: How Honest Was He? Watch Video

Lance Armstrong Confession: 'I Could Not Believe Lance Apologized' Watch Video

Lance Armstrong's Many Denials Caught on Tape Watch Video

The U.S. Postal Service Cycling Team "ran the most sophisticated, professionalized and successful doping program that sport has ever seen," USADA said in its report.

As a result of USADA's findings, Armstrong was stripped of his Tour de France titles. Soon, longtime sponsors including Nike began to abandon him, too.

READ MORE: Did Doping Cause Armstrong's Cancer?

Armstrong said he was driven to cheat by a "ruthless desire to win."

He told Winfrey that his competition "cocktail" consisted of EPO, blood transfusions and testosterone, and that he had previously used cortisone. He would not, however, give Winfrey the details of when, where and with whom he doped during seven winning Tours de France between 1999 and 2005.

He said he stopped doping following his 2005 Tour de France victory and did not use banned substances when he placed third in 2009 and entered the tour again in 2010.

"It was a mythic perfect story and it wasn't true," Armstrong said of his fairytale story of overcoming testicular cancer to become the most celebrated cyclist in history.

READ MORE: 10 Scandalous Public Confessions

PHOTOS: Olympic Doping Scandals: Past and Present

PHOTOS: Tour de France 2012

Armstrong would not name other members of his team who doped, but admitted that as the team's captain he set an example. He admitted he was "a bully" but said there "there was a never a directive" from him that his teammates had to use banned substances.

"At the time it did not feel wrong?" Winfrey asked.

"No," Armstrong said. "Scary."

"Did you feel bad about it?" she asked again.

"No," he said.

Armstrong said he thought taking the drugs was similar to filling his tires with air and bottle with water. He never thought of his actions as cheating, but "leveling the playing field" in a sport rife with doping.

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Battle of the bottle: How to curb overindulgers

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Cycling: IOC asks Armstrong to return Olympic medal

LAUSANNE: The International Olympic Committee (IOC) on Thursday asked disgraced American cyclist Lance Armstrong to return the Olympic bronze medal from the time-trial event at the 2000 Games in Sydney.

The IOC had written to Armstrong late Wednesday to ask him hand back the medal, IOC spokesman Mark Adams told AFP.

The IOC had to wait for world cycling's governing body to sanction Armstrong, which it did on December 6, and the following three weeks in which the Texan had recourse to appeal at the Court of Arbitration for Sport (CAS).

The US Olympic Committee, to which Armstrong must theoretically return the medal, has also been informed, Adams added.

Armstrong was stripped of his seven Tour de France titles and banned from the sport for life in October after the US Anti-Doping Agency (USADA) produced evidence of widespread doping by him and his former team-mates.

The time-trial in the 2000 Games was won by Armstrong's ex-US Postal Service teammate Viasheslav Ekimov of Russia, now general manager of the Katusha team whose ambivalent stance on doping cost them a place in the elite ProTeam list for this season.

The silver medal went to one of Armstrong's great rivals, Jan Ullrich of Germany, who was caught up in the Operation Puerto doping probe and eventually served a two-year ban for doping.

Abraham Olano of Spain came home in fourth and may be set to inherit the bronze vacated by Armstrong.

Other notable results in the race held in Sydney were by American Tyler Hamilton, a former teammate of Armstrong at US Postal who finished tenth and went on to win gold at the 2004 Athens Games before testing positive for doping.

British rider David Millar finished 16th and is still currently on the circuit after serving his own two-year ban from 2004.

The International Cycling Union (UCI) late last year effectively erased Armstrong from the cycling history books when it decided not to appeal sanctions imposed on the Texan rider by the USADA.

In his first interview since Armstrong was shorn of his Tour titles, recorded Monday with Oprah Winfrey and due to be broadcast on Thursday and Friday, the chat show host confirmed that the Texan admitted using performance-enhancing drugs.

- AFP/fa

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Tonight, we hear what he told Oprah

STORY HIGHLIGHTS

• Media reports say Armstrong admitted to using performance-enhancing drugs


• Source tells CNN the former cyclist in talks to repay some sponsorship money


• Interview with Winfrey lasted 2 1/2 hours


• Armstrong apologizes to cancer foundation workers for their stress

Still own a Livestrong bracelet? Tell us about it.

(CNN) -- Appetites already whet by Lance Armstrong's reported admission to Oprah Winfrey of performance-enhancing drug use, we now eagerly wait to see what else the disgraced cycling legend puts on the table with the talk show queen.

The first part of their 2 1/2-hour interview airs on Winfrey's OWN cable network and the Internet Thursday at 9 p.m. ET. Whatever transpires, Armstrong's carefully constructed public persona has been altered forever.

Livestrong: Come clean

The cancer charity Armstrong founded urged the fallen star to come clean, ahead of the interview airing.

Lance Armstrong over the years

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"We expect Lance to be completely truthful and forthcoming in his interview and with all of us in the cancer community," Livestrong said in a statement released Wednesday. "We expect we will have more to say at that time."

In October, Armstrong resigned as chairman of the charity he founded "to spare the foundation any negative effects as a result of controversy surrounding my cycling career," according to a statement posted to the group's website at the time. A few weeks later, he left the board entirely amid concerns that his involvement was harming the charity.

On Monday, he visited the charity and "expressed his regret for the stress the team suffered in recent years as a result of the controversy surrounding his cycling career," the organization said in a statement.

"Inspired by the people with cancer whom we serve, we feel confident and optimistic about the Foundation's future and welcome an end to speculation," the group said.

Livestrong tells Armstrong: Be truthful about doping

Postage due

As part of his public reclamation project, Armstrong might pay back part of the money he received from the U.S. Postal Service, which sponsored the cyclist and his team while he was winning six of his Tours de France, a source familiar with the situation said.

The source said Armstrong was in negotiations to repay some of the money.

ESPN reported in 2011 that the agency, which is not taxpayer funded, paid more that $31 million to sponsor the team during the final four years of its agreement.

A spokeswoman for the postal service said: "We are not in a position now to discuss any of the legal issues associated with these developments and the prior relationship between the U.S. Postal Service and Mr. Armstrong, but we will do so at an appropriate time."

Armstrong won the Tour de France a record seven straight years, beginning in 1999. The postal service sponsored the team from 1996 to 2004.

Lance Armstrong in talks to return Postal Service money

Slipping from his pedestal

The court of public opinion came down decidedly against Armstrong this week after he acknowledged using performance-enhancing drugs after years of denials.

"This guy is a loser and a liar!!" Melinda Morgan said on CNN's Facebook page. "He is not sorry for what he did, he is sorry that he got caught!!"

Margaret Midkiff said there's no hope of Armstrong reviving his career. "He's lied to folks way too long."

Cycling fan Beverlee Ring said she has "mixed feelings" about the Winfrey interview.

"He should apologize and do whatever it takes to begin the healing," she said in a submission to CNN's iReport. "Now is when the real work begins for Lance."

But Gretta Michellé said it's too late for redemption.

"He had the opportunity to be honest from the beginning and he should have," she posted on the Facebook page. "Winning was more important."

Public takes shots at Armstrong

Sanctions still stick

Armstrong's reported admissions, if true, would be a stunning reversal after years of vigorous denials, including lawsuits filed against accusers.

But it still will not be enough to reverse the lifetime ban and other sanctions that have kept him from participating in some triathlons, the three-event sport he took up after retiring from cycling.

"Only when Mr. Armstrong makes a full confession under oath, and tells the anti-doping authorities all he knows about doping activities, can any legal and proper process for him to seek any reopening or reconsideration of his lifetime ban commence," said David Howman, director general of the World Anti-Doping Agency.

Oprah interview won't reduce sanctions against Armstrong, officials say

Critics find vindication

Those who spoke out against Armstrong at the height of his power and popularity, not only felt his wrath, but the wrath of an adoring public.

Now, stripped of endorsement deals and his titles, those who did speak out are feeling vindicated.

Former colleagues, assistants and journalists who ran afoul of the Armstrong machine, complained of being blackballed, ostracized and the object of lawsuits designed to shut them up.

"Eleven years of bullying and threats," Kathy LeMond, the wife of cyclist Greg LeMond -- one of Armstrong's earliest targets -- wrote on Twitter. "LA is now the Greatest Fraud in the History of Sports."

Once a close friend of Armstrong, cyclist Frankie Andreu had a falling out with him after his wife, Betsy, began to cooperate with a reporter working on a book about doping allegations against Armstrong.

She recently told Cycling News that "grown men were torn to shreds by Armstrong," and said she was "extremely grateful" to the U.S. Anti-Doping Agency for its investigation that resulted in a lifetime ban for Armstrong and loss of his seven Tour de France titles.

'What Joe Public thinks of me I don't care," Andreu told the New York Daily News. "I care what my family and close friends think of me. When it affects my husband's ability to work then it's grossly unfair. Who knows how many jobs he lost because I refused to lie to protect Lance."

Armstrong report vindicates those who raised doping alert

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Manti Te'o says he's the victim of "girlfriend" hoax

Updated 11:20 p.m. ET

SOUTH BEND, Ind. Notre Dame said a story that star Manti Te'o's girlfriend had died of leukemia — a loss he said inspired him all season and helped him lead the Irish to the BCS title game — turned out to be a hoax apparently perpetrated against the linebacker.

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Manti Te'o

Notre Dame Fighting Irish Athletic Director Jack Swarbrick held a press conference late Wednesday about the apparent hoax Wednesday after Deadspin.com said it could find no record that Lennay Kekua ever existed.

"This was a very elaborate, very sophisticated hoax perpetrated for reasons we can't fully understand," Swarbrick said.

CBS News and its morning program, "CBS This Morning," were among the many news outlets that reported on the "hoax" girlfriend's death. "CBS This Morning" will have an update on the report Thursday.

The Notre Dame athletic director insisted "several things" led him to believe Te'o did not create the girlfriend himself after the university's investigation into the situation, led by a private investigative firm.

"Manti was the victim of that hoax. He has to carry that with him for a while. In many ways, Manti was the perfect mark because he's the guy who was so willing to believe in others," Swarbrick said. "The pain was real. The grieving was real. The affection was real."

By Te'o's own account, she was an "online" girlfriend.

"This is incredibly embarrassing to talk about, but over an extended period of time, I developed an emotional relationship with a woman I met online. We maintained what I thought to be an authentic relationship by communicating frequently online and on the phone, and I grew to care deeply about her," he said in statement.

"To realize that I was the victim of what was apparently someone's sick joke and constant lies was, and is, painful and humiliating."

"In retrospect, I obviously should have been much more cautious. If anything good comes of this, I hope it is that others will be far more guarded when they engage with people online than I was."

The linebacker's father, Brian Te'o, said in a telephone interview with The Associated Press in early October that he and his wife had never met Kekua, saying they were hoping to meet her at the Wake Forest game in November. The father said he believed the relationship was just beginning to get serious when she died.

Notre Dame Fighting Irish Athletic Director Jack Swarbrick at a press conference on Jan. 16, 2013.

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CBS News

Swarbrick likened the situation to the 2010 movie "Catfish," in which "young filmmakers document their colleague's budding online friendship" with an allegedly young woman that turns out also to be a hoax.

The university said its coaches were informed by Te'o and his parents on Dec. 26 that Te'o had been the victim of what appeared to be a hoax.

Someone using a fictitious name "apparently ingratiated herself with Manti and then conspired with others to lead him to believe she had tragically died of leukemia," the school said.

Swarbrick said the investigation revealed "several" perpetrators, although the exact number is unclear. He said the university became convinced of the hoax based on "the joy they were taking...referring to what they accomplished and what they had done."

Te'o talked freely about the relationship after her supposed death and how much she meant to him.

In a story that appeared in the South Bend Tribune on Oct. 12, Manti's father, Brian, recounted a story about how his son and Kekua met after Notre Dame had played at Stanford in 2009. Brian Te'o also told the newspaper that Kekua had visited Hawaii and the met with his son. Brian Te'o told the AP in an interview in October that he and his wife had never met Manti's girlfriend but they had hoped to at the Wake Forest game in November. The father said he believed the relationship was just beginning to get serious when she died.

The Tribune released a statement saying: "At the Tribune, we are as stunned by these revelations as everyone else. Indeed, this season we reported the story of this fake girlfriend and her death as details were given to us by Te'o, members of his family and his coaches at Notre Dame."

The week before Notre Dame played Michigan State on Sept. 15, coach Brian Kelly told reporters when asked that Te'o's grandmother and a friend had died. Te'o didn't miss the game. He said Kekua had told him not to miss a game if she died. Te'o turned in one of his best performances of the season in the 20-3 victory in East Lansing, and his playing through heartache became a prominent theme during the Irish's undefeated regular season.

"My family and my girlfriend's family have received so much love and support from the Notre Dame family," he said after that game. "Michigan State fans showed some love. And it goes to show that people understand that football is just a game, and it's a game that we play, and we have fun doing it. But at the end of the day, what matters is the people who are around you, and family. I appreciate all the love and support that everybody's given my family and my girlfriend's family."

Manti Te'o #5 of the Notre Dame Fighting Irish reacts after beating the Michigan State Spartans 20-3 at Spartan Stadium Stadium on September 15, 2012, in East Lansing, Michigan.

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Gregory Shamus/Getty Images

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2013 BCS National Championship

Te'o went on the become a Heisman Trophy finalist, finishing second in the voting, and leading Notre Dame to its first appearance in the BCS championship.

He was asked again about his girlfriend on Jan. 3 prior to the BCS title game, saying: "This team is very special to me, and the guys on it have always been there for me, through the good times and the bad times. I rarely have a quiet time to myself because I always have somebody calling me, asking, `Do you want to go to the movies?' Coach is always calling me asking me, `Are you OK? Do you need anything?'"

Te'o and the Irish lost the title game to Alabama, 42-14 on Jan. 7. He has graduated and was set to begin preparing for the NFL combine and draft at the IMG Academy in Bradenton, Fla., this week.

Four days ago Te'o posted on his Twitter account: "Can't wait to start training with the guys! Workin to be the best! The grind continues! (hash)Future"

Te'o's statement also said: "It further pains me that the grief I felt and the sympathies expressed to me at the time of my grandmother's death in September were in any way deepened by what I believed to be another significant loss in my life.

"I am enormously grateful for the support of my family, friends and Notre Dame fans throughout this year. To think that I shared with them my happiness about my relationship and details that I thought to be true about her just makes me sick. I hope that people can understand how trying and confusing this whole experience has been.

"Fortunately, I have many wonderful things in my life, and I'm looking forward to putting this painful experience behind me as I focus on preparing for the NFL Draft."

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Notre Dame: Football Star Was 'Catfished' in Hoax

Notre Dame's athletic director and the star of its near-championship football team said the widely-reported death of the star's girlfriend from leukemia during the 2012 football season was apparently a hoax, and the player said he was duped by it as well.

Manti Te'o, who led the Fighting Irish to the BCS championship game this year and finished second for the Heisman Trophy, said in a statement today that he fell in love with a girl online last year who turned out not to be real.

The university's athletic director, Jack Swarbrick, said it has been investigating the "cruel hoax" since Te'o approached officials in late December to say he believed he had been tricked.

Private investigators hired by the university subsequently monitored online chatter by the alleged perpetrators, Swarbrick said, adding that he was shocked by the "casual cruelty" it revealed.

"They enjoyed the joke," Swarbrick said, comparing the ruse to the popular film "Catfish," in which filmmakers revealed a person at the other end of an online relationship was not who they said they were.

"While we still don't know all of the dimensions of this ... there are certain things that I feel confident we do know," Swarbrick said. "The first is that this was a very elaborate, very sophisticated hoax, perpetrated for reasons we don't understand."

Mike Ehrmann/Getty Images

Tale of Notre Dame Football Star's Girlfriend and Her Death an Alleged Hoax Watch Video

Notre Dame's Athletic Director Discusses Manti Te'o Girlfriend Hoax Watch Video

MTV's 'Catfish' Series Pulls Back Curtain on Online Profiles Watch Video

Te'o said during the season that his girlfriend, Lennay Kekua, died of leukemia in September on the same day Te'o's grandmother died, triggering an outpouring of support for Te'o at Notre Dame and in the media.

"While my grandma passed away and you take, you know, the love of my life [Kekua]. The last thing she said to me was, 'I love you,'" Te'o said at the time, noting that he had talked to Kekua on the phone and by text message until her death.

Now, responding to a story first reported by the sports website Deadspin, Te'o has acknowledged that Kekua never existed. The website reported today that there were no records of a woman named Lennay Kekua anywhere.

Te'o denied that he was in on the hoax.

"This is incredibly embarrassing to talk about, but over an extended period of time, I developed an emotional relationship with a woman I met online," Te'o said in a statement released this afternoon. "We maintained what I thought to be an authentic relationship by communicating frequently online and on the phone, and I grew to care deeply about her."

Swarbrick said he expected Te'o to give his version of events at a public event soon, perhaps Thursday, and that he believed Te'o's representatives were planning to disclose the truth next week until today's story broke.

Deadspin reported that the image attached to Kekua's social media profiles, through which the pair interacted, was of another woman who has said she did not even know Te'o or know that her picture was being used. The website reported that it traced the profiles to a California man who is an acquaintance of Te'o and of the woman whose photo was stolen.

"To realize that I was the victim of what was apparently someone's sick joke and constant lies was, and is, painful and humiliating," Te'o said.

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NASA rover ready to drill into Martian rock

Victoria Jaggard, physical sciences news editor

(Image: NASA/JPL-Caltech/MSSS)

NASA's Curiosity rover is about to tap the rocky veins of Mars, which might yield clues to the Red Planet's watery past.

Exploring a region not far from where it landed on 6 August, the Curiosity rover has found rocks shot through with veins of light-coloured minerals. Chemical analysis from one of the rover's remote-sensing cameras shows that the veins are hydrated calcium sulphates, possibly gypsum. They probably formed when water flowed through fractures in the bedrock and left dissolved material behind behind.

The find takes NASA's mantra "follow the water" to a whole new level.

"The exciting thing about precipitated minerals is that we know something dissolved rock somewhere else on the planet and ions got transported along by a fluid," said project scientist John Grotzinger during a teleconference yesterday. Studying the mineral-laced rocks can give clues to where the water came from and to environmental conditions when the veins formed.

The team will use the rover's drill for the first time on a veined outcrop named John Klein, an homage to a former project worker who died in 2011. The drill can bite about 5 centimetres into Martian rock, collect pulverised samples and deliver material to other onboard instruments for analysis.

"What we are hoping to do is get a sense of the mineralogy - how many aqueous mineral phases are present, the isotope ratios, and even a chance to look for organics," Grotzinger said.

Although initially thought too soft to preserve fossils, previous work showed that gypsum on Earth can hold traces of ancient carbon-based life.

Elsewhere at the site - a shallow depression dubbed Yellowknife Bay - the rover has spotted rocks studded with rounded features called spherules, which also tell of fluids at work.

"We are feeling confident these are sedimentary concretions [rocks formed as sediments washed from afar become cemented together]," Grotzinger said. "Put that together with the veins, and basically these rocks were saturated with water."

Another outcrop at the site shows a texture called cross-bedding, which resembles stacked layers of rock. These features on Earth are associated with water pushing small dunes of sediments along a stream bed. "There's a real trend that's emerging here on our tour," Grotzinger said.

The team won't be ready to drill for a few weeks yet, as they continue to take samples with other instruments and then drive the rover to the John Klein outcrop.

"It takes a fairly extended period of time because drilling is the most significant engineering thing we've done since landing," said rover project manager Richard Cook. Team members have also been examining and recording the great diversity of rock types at Yellowknife Bay, some of which may also become targets for drilling.

"It's safe to say scientists have been led into the candy store," Cook said. "I'm really excited about the next few weeks."

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Japan mulling military equipment near disputed isles

TOKYO: Japan may station military equipment on islands near an archipelago at the centre of a dispute with China, officials said Wednesday, after a number of airborne near-confrontations.

The defence ministry will ask for money in the next fiscal year to study the idea of putting mobile radars and communication systems on islands near the Japan-controlled Senkakus, which Beijing calls the Diaoyus, a defence spokesman said.

"The study is part of our plan to operate in southwestern islands with flexibility," the spokesman said.

The comment came after reports said Japan is considering permanently stationing F-15 fighter jets on Shimoji, a small island near the Senkakus.

Defence Minister Itsunori Onodera denied that and said Tuesday: "We are studying various options as to how to build a sound security system in our southwestern waters."

The maritime dispute, which has simmered for years, heated up last year when the Japanese government nationalised some of the islands, triggering anger and demonstrations in China.

Observers said the protests had some backing from communist authorities in Beijing, who use nationalism to bolster their claims to legitimacy.

Tokyo's defence ministry has said F-15s were sent airborne to head off Chinese state-owned -- but not military -- planes four times in December, including one occasion when Japanese airspace was breached.

They were also mobilised in January, it said.

On the occasion when Japan says its airspace was breached, the air force did not detect the Chinese aircraft, which had already moved off by the time fighter jets were scrambled.

- AFP/ir

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Online courses need human element

Online courses are proliferating, says Douglas Rushkoff, but will really succeed when they bring humanity to learning process

STORY HIGHLIGHTS

• Douglas Rushkoff: Education is under threat, but online computer courses are not to blame


• He says education's value hard to measure; is it for making money or being engaged?


• He says Massive Open Online Courses lack human exchange with teachers


• Rushkoff: MOOCs should bring together people to share studies, maintain education's humanity

Editor's note: Douglas Rushkoff writes a regular column for CNN.com. He is a media theorist and the author of "Program or Be Programmed: Ten Commands for a Digital Age" and "Life Inc.: How Corporatism Conquered the World, and How We Can Take It Back." He is also a digital literacy advocate for Codecademy.com. His forthcoming book is "Present Shock: When Everything Happens Now."

(CNN) -- Education is under threat, but the Internet and the growth of Massive Open Online Courses are not to blame.

Like the arts and journalism, whose value may be difficult to measure in dollars, higher education has long been understood as a rather "soft" pursuit. And this has led people to ask fundamental questions it:

What is learning, really? And why does it matter unless, of course, it provides a workplace skill or a license to practice? Is the whole notion of a liberal arts education obsolete or perhaps an overpriced invitation to unemployment?

Douglas Rushkoff

The inability to answer these questions lies at the heart of universities' failure to compete with new online educational offerings -- the rapidly proliferating MOOCs -- as well as the failure of most Web-based schools to provide a valid alternative to the traditional four-year college.

Education is about more than acquiring skills.

When America and other industrialized nations created public schools, it was not to make better workers but happier ones. The ability to read, write and think was seen as a human right and a perquisite to good citizenship, or at least the surest way to guarantee compliant servitude from the workers of industrial society. If even the coal miner could spend some of his time off reading, he stood a chance of living a meaningful life. Moreover, his ability to read the newspaper allowed him to understand the issues the day and to vote intelligently.

What we consider basic knowledge has grown to include science, history, the humanities and economics. So, too, has grown the time required to learn it all. While the modern college might have begun as a kind of finishing school, a way for the sons of the elite to become cultured and find one another before beginning their own careers, it eventually became an extension of public school's mandate. We go to college to become smarter and more critical thinkers while also gaining skills we might need for the work force.

Accordingly, we all wanted our sons and daughters to go to college until recently. The more of us who could afford it, the better we felt we were doing as a society. But the price of education has skyrocketed, especially in the tiny segment of elite schools. This has led to the widespread misperception that a good college education is available only to those willing to take on six-figure debt.

Worse, in making the calculation about whether college is "worth it," we tend to measure the cost of a Harvard education against the market value of the skills acquired. Did my kid learn how to use Excel? If not, what was the point?

To the rescue come the MOOCs, which offer specific courses, a la carte, to anyone with a credit card; some even offer courses for free.

Following the model of University of Phoenix, which began offering a variety of "distance learning" in 1989, these newer Web sites offer video lectures and forums to learn just about anything, in most cases for a few hundred dollars a class. MOOCs have exploded in the past few years, enrolling millions of students and sometimes partnering with major universities.

For pure knowledge acquisition, it's hard to argue against such developments, especially in an era that doesn't prioritize enrichment for its own sake. But it would be a mistake to conclude that online courses fulfill the same role in a person's life as a college education, just as it would be an error to equate four years of high school with some online study and a GED exam.

Don't get me wrong: I have always been a fan of online education -- but with a few important caveats.

First off, subjects tend to be conveyed best in what might be considered their native environments. Computers might not be the best place to simulate a live philosophy seminar, but they are terrific places to teach people how to use and program computers.

Second, and just as important, computers should not require the humans using them to become more robotic. I recently read an account from an online lecturer about how -- unlike in a real classroom -- he had to deliver his online video lectures according to a rigid script, where every action was choreographed. To communicate effectively online, he needed to stop thinking and living in the moment. That's not teaching; it's animatronics.

Online learning needs to cater to human users. A real instructor should not simply dump data on a person, as in a scripted video, but engage with students, consider their responses and offer individualized challenges.

The good, living teacher probes the way students think and offers counterexamples that open pathways. With the benefit of a perfect memory of student's past responses, a computer lesson should also be able to identify some of these patterns and offer up novel challenges at the right time. "How might Marx have responded to that suggestion, Joe?"

Finally, education does not happen in isolation.

Whether it's philosophy students arguing in a dorm about what Hegel meant, or fledgling Java programmers inspecting one another's code, people learn best as part of a cohort. The course material is almost secondary to the engagement. We go to college for the people.

Likewise, the best of MOOCs should be able bring together ideal, heterogeneous groupings of students based on their profiles and past performance, and also create ample opportunities for them to engage with one another in the spirit of learning.

Perhaps this spirit of mutual aid is what built the Internet in the first place. Now that this massive collaborative learning project has succeeded, it would be a shame if we used it to take the humanity out of learning altogether.

Follow @CNNOpinion on Twitter.

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The opinions expressed in this commentary are solely those of Douglas Rushkoff.

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Marine faces court martial over Taliban urinations

CAMP LEJEUNE, N.C. A U.S. Marine was set to face court martial Wednesday for urinating on the bodies of dead Taliban fighters in Afghanistan and then posing for photos with the corpses.

Staff Sgt. Edward W. Deptola is accused of the desecration of remains and posing for unofficial photographs with human casualties. He also is accused of failing to properly supervise junior Marines and not reporting the misconduct.

Deptola and another Marine based at Camp LeJeune, N.C., were charged last year after video surfaced showing four Marines in full combat gear urinating on the bodies of three dead Afghans in July 2011. In the video, one of the Marines looked down at the bodies and quipped, "Have a good day, buddy."

Play Video

Political fallout over Marines video

As CBS News national security correspondent David Martin reported after the video's disclosure last January, the Marines in the video were members of a 1,000-man battalion that had completed a combat tour in Afghanistan and returned to Camp Lejuene, where they apparently started showing the video around as a war trophy.

Staff Sgt. Joseph W. Chamblin pleaded guilty to similar charges last month. Chamblin was sentenced to 30 days confinement, reduced in rank, fined and ordered to forfeit part of his pay for six months. Three other Marines were given administrative punishments for their roles in the matter.

Marine's punishment scaled back in urination case

The urination video surfaced amid a string of embarrassing episodes for U.S. forces in Afghanistan. American troops were caught up in controversies over burning Muslim holy books, posing for photos with insurgents' bloodied remains and an alleged massacre of 16 Afghan villagers by a soldier.

The Marine Corps said the urination took place during a counterinsurgency operation in the Musa Qala district of Helmand province, located in the south of the country.

After the video garnered international attention on YouTube, senior military officials sternly condemned the behavior of the Marines involved.

The United States now has 66,000 troops in Afghanistan. The U.S. and its NATO allies agreed in November 2010 that they would withdraw all their combat troops by the end of 2014, but they haven't decided on the scope of future missions in the country and the size of any residual force remaining after that.

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