I am not American, so perhaps it is that the rest of the world sees this differently than American's do.
Regarding Snowden fleeing, if you disagree with his choice then give this interview a read[1], it is with the whistleblower for the Pentagon papers. The opinion is that if Snowden didn't flee in today's climate then he likely would have ended up in isolation or Guantanamo.
As an outsider to the US it is interesting to observe that American's (on average) have a high distrust of their government, yet follow quite closely the US government's line. (Please note this is not intended to inflame, but it is an honest observation from an outsider that has observed many American's and is intended for you to reflect upon).
[1] http://www.salon.com/2013/06/14/daniel_ellsberg_edward_snowd...