Snowden is really clever with these interviews. Right away in the interview he establishes his concerns about the government, then briefly mentions the government smear campaign against him without hanging on the point too much. He calmly explains himself in an articulate way, establishing himself as perfectly sane. Then he reaches out to connect and empathize with his interviewer: > When I hear you just speak, I go…
It's very likely that a lot of less calculating would-be Snowdens are lying in unmarked graves out there somewhere.