You do realize that the crime of treason is codified in the United States Constitution, and that what Snowden did in no way meets the criteria enumerated there. Careful throwing the word "treason" around like that, it can make you appear ignorant.
“If you think that one, Al Qaeda and similar groups are the enemy for purposes of treason; two, his actions assisted them in operations against the U.S.; and three, that was his intention,” Harrison said, “then the argument that it was treason is pretty good.” - John Harrison UVA LAW specializing in constitutional law and history.