In April 2004, a former U.S. Special Forces soldier named Jonathan Keith Idema started shopping a sizzling story to the media. He claimed terrorists in Afghanistan planned to use bomb-laden taxi cabs to kill key U.S. and Afghan officials, and that he himself intended to thwart the attack. Shortly thereafter, he headed to Afghanistan, where he spent the next two months conducting a series of raids with his team, which he called Task Force Saber 7. By late June, he claimed to have captured the plotters, and started trying to clinch a deal with television networks by offering them “direct access” to one of the terrorists who, he said, had agreed to tell all.

Idema, who was paying an Emmy Award-winning cameraman to document his activities, even distributed a sample tape of himself arresting people and interrogating hooded suspects. In one scene he is shown blocking a road and emptying passing vehicles. “Put your fucking hands up or I’ll blow your fucking brains out,’ he screams at a group of men who have shuffled bewilderedly off a bus and are standing with their flimsy tunics whipping in the wind.

In exchange for footage and access, Idema wanted a minimum of $250,000 and prominent play. He asked that ABC send Peter Jennings or Cristopher Cuomo to cover the story. Ultimately ABC turned the story down, as did CNN. A CBS spokesperson, Kelli Edwards, says the network “never seriously considered” it, although Idema was regularly e-mailing Dan Rather’s office and in June the network sent two employees to Idema’s Kabul headquarters to pick up the sample tape.

It appears that Idema still hadn’t sold the taxicab story by July 5, when his situation took a turn for the worse. The Afghan police raided his headquarters and discovered eight prisoners, some of them tethered to chairs in a back room, which was littered with bloody cloth. The men later told reporters that they had been starved, beaten, doused with scalding water, and forced to languish for days in their own feces. Afghan authorities determined that none of the detainees had links to terrorism and set them free. Idema, on the other hand, was arrested, along with two other Americans (the cameraman and a former soldier) and four Afghans, and charged with running an unauthorized prison and torturing its inmates. After a cursory trial, he was sentenced to serve ten years. (This case is on appeal.)

For all its outlandish twists, the saga of the taxicab plot was not extraordinary for Idema, who over the years had fed the press a variety of sensational material that seemed to shed light on the shadowy world of secret soldiers, spies, and assassins. This time the story never ran, but Idema has been a key source for numerous questionable stories that did. A self-proclaimed terror-fighter who has served time for fraud, Idema took a willing media by storm, glorifying his own exploits, padding his bank account, and providing dubious information to the American public.

In January 2002, Idema sold CBS sensational footage, which he called the “VideoX” tapes, that purported to show an Al Qaeda training camp in action. The tapes became the centerpiece of the bombshell 60 Minutes II piece, “Heart of Darkness,” reported by Dan Rather and touted as “the most intimate look yet at how the world’s deadliest terrorist organization trains its recruits.” Idema also sold video stills to a number of print outlets, including The Boston Globe. MSNBC, ABC, NBC, the BBC, and others later replayed the tapes. Questions are now emerging about their authenticity, some of which were detailed in a piece by Stacy Sullivan in New York magazine in October.

Idema also served as an expert military commentator on Fox News and was a lead character in Robin Moore’s best-selling book The Hunt for Bin Laden, which was supposed to chronicle the exploits of U.S. Special Forces in Afghanistan. And he fielded hundreds of interviews with major newspapers, television networks, and radio stations, which seemed to take his swaggering claims — that he was an active-duty Green Beret in Afghanistan, an undercover spy, an explosives expert, and a key player in the hunt for Osama bin Laden — at face value. Idema used the platform the media provided to spread dubious information, much of it with crucial implications for national security and foreign policy. For example, he claimed to have uncovered a plot to assassinate Bill Clinton; that bin Laden was dead, and that the Taliban was poisoning the food that the United States was air-dropping to feed hungry Afghans. (In fact, people were getting sick from eating the desiccant packed with the food.)

Mariah Blake writes for the United States Project, CJR's politics and policy desk. She is based in Washington, DC, and her work has appeared in The Atlantic, The New Republic, Foreign Policy, Salon, The Washington Monthly, and CJR, among other publications.