This past October, at an Occupy encampment in Cleveland, Ohio, "suspicious males with walkie-talkies around their necks" and "scarves or towels around their heads" were heard grumbling at the protesters' unwillingness to act violently. At meetings a few months later, one of them, a 26-year-old with a black Mohawk known as "Cyco," explained to his anarchist colleagues how "you can make plastic explosives with bleach," and the group of five men fantasized about what they might blow up. Cyco suggested a small bridge. One of the others thought they’d have a better chance of not hurting people if they blew up a cargo ship. A third, however, argued for a big bridge – "Gotta slow the traffic that's going to make them money" – and won. He then led them to a connection who sold them C-4 explosives for $450. Then, the night before the May Day Occupy protests, they allegedly put the plan into motion – and just as the would-be terrorists fiddled with the detonator they hoped would blow to smithereens a scenic bridge in Ohio’s Cuyahoga Valley National Park traversed by 13,610 vehicles every day, the FBI swooped in to arrest them.

Right in the nick of time, just like in the movies. The authorities couldn’t have more effectively made the Occupy movement look like a danger to the republic if they had scripted it. Maybe that's because, more or less, they did.

The guy who convinced the plotters to blow up a big bridge, led them to the arms merchant, and drove the team to the bomb site was an FBI informant. The merchant was an FBI agent. The bomb, of course, was a dud. And the arrest was part of a pattern of entrapment by federal law enforcement since September 11, 2001, not of terrorist suspects, but of young men federal agents have had to talk into embracing violence in the first place.