Eva, don't bother. He isn't involved (in the bombing of London). He is just an a$$hole lawyer (sorry to offend a$$holes) who is currently suing the Feds for wrongful persecution and is attempting to kill the Patriot Act.
See, thats his job. He is inside to subvert our security by using our system. He is a person of "coincidence".
Its all magic, slight of hand. "See this, now pay attention, see it?.. OK! Keep your eye on the ball. Now, can you find the terrorist?"
I never believed the b. s. about it being a mistaken match of the fingerprint. I don't believe in coincidences like that. I don't believe that Yee was innocent, either.
I am sure that Mayfield and Yee are both on the watch list, anyway. The fact that Yee and Mayfield both had connections to this guy in Pakistan is enough of a coincidence.