Another leak or two (especially about China, who most Americans feel are one step away from being the next U.S.S.R. anyways) and Obama, DNI, Congress, and basically everyone will be able to smooth the whole thing over by painting it with the traitor brush.
I really think Snowden has tried to bite off more than he can chew. At first I believed him that he wanted a debate about how the NSA was being used and how dangerous it could be in the wrong hands. Now I think he really wants to gut the whole thing entirely.
But Americans don't want that, they want an agency whose job it is to protect COMSEC, break others' COMSEC and especially to detect and root out terror cells and other anti-U.S. crime before it reaches our shores. The more Snowden aligns his goals with the destruction of the NSA and CIA the more I think he will get people to turn on him completely.
Don't get me wrong; I want that utopia where no one commits crime, we don't need money, everyone's interested are 100% aligned and we just explore the galaxy as peaceful peoples. But if we ever achieve that it would be 1000 times more remarkable than the Sistine Chapel. And you can bet your ass they wouldn't have completed the Sistine Chapel had they torn down all that ugly scaffolding ⅓rd of the way through.