But what the hell, some weeks ago Snowden was just Snowden, but in this article again "NSA whistleblower".
A rather short search on ElReg come up with the following:
master blabbermouth Edward Snowden.
former NSA sysadmin Edward Snowden
rogue sysadmin Edward Snowden
Whistleblower Edward Snowden
Master NSA blabbermouth Edward Snowden
NSA master blabbermouth Edward Snowden
whistleblower in chief Edward Snowden
The People's Whistleblower
Whistleblower-in-chief Edward Snowden
international whistleblower Edward Snowden
a champion of privacy
Fast Eddy / hero whistlebower
What about having some more competition on this. (whistlebower was quite nice).