Good evening. He has done as much as any one man in modern history to affect u. S. Intelligence policy, even our relations with some other countries. Today Edward Snowden, the man who singlehandedly exposed this nations secret spy program of data mining and made off with over a million secret documents went on the record from his hiding place in russia. It was a webbased questionandanswer session, motivated perhaps in part by the recent charges that he was somehow working with the russians, who later provided him a home. And on this very day, the u. S. Attorney general weighed in for the first time on the idea of clemency for snowden. It is where we begin with our chief Foreign Affairs correspondent, andrea mitchell. Reporter from his hiding place in russia, fugitive Edward Snowden answered questions tweeted to his website. ragbagusa asked what snowden thinks is the appropriate extent of u. S. National security apparatus. Surely some spying is needed. Snowden writes not all spying is b