Snowden should have released the slide and then explained exactly what is wrong with the program. Instead, he did a document dump and followed that up by giving a reveal all interview that shifts the focus from the NSA onto him and his motivations. Snowden still hasn't addressed what he technically knows about PRISM.
He also claimed in his interview he could get access to the presidents email. If he thought that was a big issue he should have gone into detail about it for reporters(the target list, how he could do it as a network administrator etc.) and supported his charge. Instead, it is a one off statement in the context of a long interview where he essentially lays out a political reasoning for why he has done what he did. Snowden still hasn't addressed any of the issues of concern about the NSA and the (lack of)oversight exercised over the agency and its programs.
He had a perfect opportunity to put his concerns before the public and I feel he blew it.
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.