Illegal tactics and due process
Lucky in other countries, the tactics used by USA prosecutors/FBI/NSA are largely considered illegal, and would undermine due process. Actually huge compensations are more likely.
Imagine a NSA confidential program being exposed to the public.
@mark l 2 - I doubt any sane Russian hacker with some intelligence knowledge would use his skills to support USA/NSA. From what I have seem from foreigners, it is either his own country or Russia. Never USA.