What do you believe the US government is hiding from us?

I don't believe that they're hiding anything from us other than secret operations and things in other countries they're doing to protect us.
If they're lying, and it's to protect us, I'd much rather be lied to than know something that could put me in danger.

I mean, I don't think we've found aliens, because if we ARE keeping them in Area 51... We're just holding aliens hostage... and I'm sure that intergalactic beings that can travel between planets and solars systems wouldn't be too happy