And your proof of  any damage cause by Snowden?  Please enlighten us!  These statements are ridiculous.  There has been ZERO damage caused by the Snowden revelations.  He turned 100% of his files over to the most reputable newspapers in the free world- The NYT, The Guardian and the Washington Post. They made sure  that nothing that would endanger national security before publishing. Also the White House's hand-picked panel on the effectiveness of mass surveillance formed after the Snowden revelations could not find a singe, not even one instance where it had led to stopping a terrorist attack. (http://www.nbcnews.com/news/other/nsa-program-stopped-no-terror-attacks-says-white-house-panel-f2D11783588).  As former CIA officer Eisler who supports a Snowden pardon wrote in Time, 
" Snowden has been accused of having “blood on his hands“—the same evidence-free cliché trotted out every time a whistleblower reveals corruption, criminality or anything else the government would prefer to hide."