I still don't see how the government could have done it. They have not motive strong enough to kill three thousand innocent lives. The falling of the WTC7 is a little weird, but it is still possible. Think about all the chaos that was going on, something could have crashed into the bottom floor and exploded, and if it landed correctly the explosion could cause it to fall like that. I can see you being skeptical now, but I don't see government involvement as a possibility.