9/11 Hijackers Were Assets of US Govt.

I would first like to state that your video was very well done. It had a lot of interesting data, and made known some holes with the 9/11 Commision Report. The question that comes up is do you belive that are own Goverment would, and is capable, of training hijackers to attack and kill thousands of it's own people. Also you have to assume that the Goverment would lie and hide information on purpose from US citizens. Now these assuption are not either right or wrong i just feel that they need to be adressed, because the Goverments involvement in such actions needs to be discussed. Another question would be why would they need to?