for me, the 9/11 hijacker still alive theory makes no sense: 1. if hijackers would be still alive, they would release actual photos or videos proving they are innocent and alive and well. no photo or video exist after 9/11. 2. hijackers taped videos explaining why they did what they did, so it makes no sense for some innocent guys to admit attacks they didnt carried out. 3. it would be stupid for the government to use stolen passports of living persons (as mentioned in loose change) to use them as scapegoat because they would simply prove they are innocent by showing themselves to the public. But as we know, it never happened. and before someone say "they were innocent but killed by FBI/CIA" : dont forget, these guys recorded themselves to explain why they did what they did.