alt Hacker NewsAs the other commenter said, the crimes the NSA did/still does far outweight any "crimes" Snowden did. And whistleblowing is by definition illegal since you have to release confidential files. That's why functioning countries should have laws protecting whistleblowers.
Whistle-blowing is not illegal (in the US) that's what the laws are there for, though obviously it's dicey and depends on media portrayal, and those laws could stand to be reinforced.
The Abu Ghraib (Iraq prison scandal) whistle-blower was protected by the system even if some people were very upset.