I think this Snowden is picking up where this last nsa official who tried it left off (name escapes me at the moment). But his claims were that what's going on now is worse than the watergate scandle. Apparently Snowden looked up to this guy. I think that's why he probably felt the need to actually steal the docs and leave the country. Because I really don't remember hearing much of anything about the previous agents allegations through the media. These guys clearly think something is seriously wrong with what the nsa is doing in regards with our personal privacy and sensetive information.
Obamas own words were that people are going to have to get used to small encroachments on our civil liberties. I mean come on!
Edit: Thomas Drake was the other guy.