I think you make a strong argument. Here's a question: What happens when the smart anarchist turns in the snitch to the local police department with full documentation of conspiracy to commit a terrorist act?
"Yet, far from succeeding, Monteilh eventually so unnerved Orange County's Muslim community that that they got a restraining order against him. In an ironic twist, they also reported Monteilh to the FBI: unaware he was in fact working undercover for the agency."
-- http://www.guardian.co.uk/world/2012/mar/20/fbi-informant