Comment Re:Why is it even called "Blackhat"? (Score 4, Informative) 41
The NSA is not a law enforcement agency. They're an intelligence agency: they have little jurisdiction to charge US citizens for domestic crimes, or authority to arrest foreign nationsals for crimes overseas. That would be the task of the FBI for various federal crimes, the Secret Service for certain types of fiscal crimes including wire fraud, or local police for state or local crimes. And I'm afraid the NSA doesn't like to share responsibility for such arrests, because monitoring US communications is actually against their charter. They do it anyway with various very poor excuses, but they'd hardly pursue arrests on that basis.
Also, a lot of the activity is below any reasonable threshold of when a prosecutor would be bothered to file charges.