I imagine this is entirely a function of your social circle. The polls conducted this year have been marginally in favor of his prosecution: http://en.wikipedia.org/wiki/Commentary_on_Edward_Snowden's_.... It's a deeply divisive issue for Americans, though it breaks along the usual lines (age, etc).
My dad, for example, who is very liberal on most things, is no fan of Snowden. Especially among the older generation who grew up during the Cold War, nothing Snowden revealed rises to the level of invasiveness that would be cause for alarm.
Most of the people I know simply do not care about surveillance. They're in the ideological majority, they don't have controversial opinions, and they (rightly) believe the government has no interest in using the fruits surveillance against them. They certainly don't sympathize with the ideas of hypothetical political dissidents that might be hypothetically suppressed using surveillance.