He leaked NOTHING AT ALL that wasn't already well known. WELL, except for the names of the programs / operations that were used inside the NSA etc. Him and jew greenwald were very, very, very obvious about this. There was a point when Snowden was leaking things, or just after and he and jew greenwald pulled a "Well we can't continue now, we're going to go through the documents and remove any identifying details of agents etc. so as not to bring harm to them." which is correct and admirable. They (Snowden) never 'leaked' anything more. This was right when they made the claim "Don't worry, only 1% of what we (Snowden) have has been leaked, we're just being safe!". It's all gatekeeping. It's what's called a Limited Hangout, even reddit understands this and has since it 'happened'.