Okay, two things, one the 'truthers' as you guys seem to call them, are not dead certin, and I don't think they dug threw government files, but did some thinking and reasoning and also some evidence... And someone once said, "If we kill him, we'll only be making him a hero"
Some of these 'truthers' are... will live in their basements, so their word is crap, and others can't get much support. People would be more suspicious if no one was saying anything. There are uses for these people...
I mean, they can't kill everyone, if they did killed someone and it came out then it would all be over, but if they just got to the really damaging ones and left the rest of the people that other people would just call crazy... Well, look...