By Trevor Aaronson

Editor's note: This story is adapted from The Terror Factory, Trevor Aaronson's new book documenting how the Federal Bureau of Investigation has built a vast network of informants to infiltrate Muslim communities and, in some cases, cultivate phony terrorist plots. The book grew from Aaronson's award-winning Mother Jones cover story "The Informants" and his research in the Investigative Reporting Program at the University of California-Berkeley.

Quazi Mohammad Nafis was a 21-year-old student living in Queens, New York, when the US government helped turn him into a terrorist.

His transformation began on July 5, 2012, when Nafis, a Bangladeshi citizen who’d come to the United States on a student visa that January, shared aspirations with a man he believed he could trust. Nafis told this man in a phone call that he wanted to wage jihad in the United States, that he enjoyed reading Al Qaeda propaganda, and that he admired "Sheikh O," or Osama bin Laden. Who this confidant was and how Nafis came to meet him remain unclear; what we know from public documents is that the man told Nafis he could introduce him to an Al Qaeda operative.

It was a hot, sunny day in Central Park on July 24 when Nafis met with Kareem, who said he was with Al Qaeda. Nafis, who had a slight build, mop of black hair, and a feebly grown beard, told Kareem that he was "ready for action."

"What I really mean is that I don’t want something that's, like, small," Nafis said. "I just want something big. Something very big. Very, very, very, very big, that will shake the whole country."

Nafis said he wanted to bomb the New York Stock Exchange, and with help from his new Al Qaeda contact, he surveilled the iconic building at 11 Wall Street. "We are going to need a lot of TNT or dynamite," Nafis told Kareem. But Nafis didn't have any explosives, and, as court records indicate, he didn’t know anyone who could sell him explosives, let alone have the money to purchase such materials. His father, a banker in Bangladesh, had spent his entire life savings to send Nafis to the United States after his son, who was described to journalists as dim by people who knew him in his native country, had flunked out of North South University in Bangladesh.

Kareem suggested they rent a storage facility to stash the material they’d need for a car bomb. He said he’d put up the money for it, and get the materials. Nafis dutifully agreed, and suggested a new target: the Federal Reserve Bank of New York. Nafis later met Kareem at a storage facility, where Nafis poured the materials Kareem had brought into trash bins, believing he was creating a 1,000-pound car bomb that could level a city block.

Read More Here: Inside the Terror Factory