Exactly this. The revelations with Snowden were in the details of things people already knew at a high level. People knew about the NSA's Echelon program, but

Exactly this. The revelations with Snowden were in the details of things people already knew at a high level. People knew about the NSA's Echelon program, but didn't know things like how they tapped the un-encrypted intra-datacenter links.