Re: Sure
Snowden didn't expose anything that wasn't already well known public information. He simply released some of what was being grabbed.
A good analogy is that everyone knows confidential medical records exist, and seeing someone's confidential file doesn't tell us anything we didn't know except their personal details.
Echelon has been known to the public for over 50 years. Snowden's claim to be a whistle blower was pretty flimsy even before he basically admitted he was working for Russia all along.