> I'm personally unconvinced that there weren't ancient civilisations with advanced technologies, yet undiscovered, which moved mountains for their own purposes.

This idea is so old it's like beating a dead horse by now. Just the idea that we are not capable of these incredible things just goes to show how little you understand or respect human ingenuity.

> Heck, even the Pentagon admits it doesn't know it all about UFO's, c'mon ..

This didn't happen... ?

Rather, a ex-pentagon guy was recruited by an ex-pop singer guy's nonsense organization, with some nonsense claims.

This is called a PR stunt.