the NSA are not that special. so will people stop FUDDing the forums with government conspiracies.
if you want some bitcoin related evidence that NSA are hopeless. look at the DPR news. the NSA had to send DPR's wallet over to the UK's intelligence office to brute force the password. the NSA cant crack encryption, nor do they have the computer power or skill to bruteforce.
While I don't spend my time sweating the NSA, I do think it can be foolish to doubt such a powerful organization. Just because they can't do something specific now, doesn't mean they won't be able to tomorrow.