I rather doubt Snowden said any such thing.
I agree. There must be some info coming out that Snowden is releasing that will really embarrass our ruling elite. They are trying to get ahead of the game by making him look like a kook.
Of course, there is an ancient civilization (or was) that lives underground. The Ant People. They used to come up to help civilization. Unfortunately, underground atomic blasts killed them all.
; )