"The spying game wasn't all it was cracked up to be for Craig  Monteilh, a convicted criminal recruited by the FBI to investigate the march of  radical Islam into Southern California. His endless talk of violent "jihad" so  alarmed worshippers at the local mosque, that they took out a restraining order  against him.  Monteilh spent 15 months pretending to be Farouk al-Aziz, a  French Syrian in search of his religious roots. He prayed five times a day at  the Islamic Centre in Irvine, Orange County, wearing white robes with a camera  hidden in one of its buttons, and carried a set of car keys that contained a  secret listening device.  The enthusiastic attempt to catch local Muslims discussing  terror campaigns backfired, however, when community leaders went to the police  with fears that the suddenly devout young man, who got up to pray at 4am, had  become a radical in their midst."  (thanks Rasha)