[PopsiclePete]

Twenty years ago, I'd have been more willing to agree with that. I could see the US Gov't as some sort of sinister, hyper-competent (and even malevolent?) force that could definitely keep a secret like that forever from us, and "disappear" those that get too nosy.

Now? Not so much. Looking at who our "representatives" are - failed football coaches, regular conspiracy nuts - there's no way in hell that this "knowledge" would remain locked away for years, decades. Not with clowns like these in charge.