I doubt the Moon Landing because we only went once. If we went back a second time I wouldn't doubt it anymore but the fact that no one else, at all, on Earth, has been back to the Moon is seriously suspect to me now. I mean, America dropped 2 nuclear bombs on Japan when 1 was more than enough to prove they would do it again and again if needed. You can doubt the authenticity/capability of something when it happens once but twice? Nope, gotta take that shit super serious after twice.