9/11 conspiracy??

There are so many conspiracy theories of 9/11. If there true or not I can not say. 9/11 is a very horrible and sad day, but a day to remember always. The lives we lost, the way it seemed every one just hopelessly staring at the towers while 2 air crafts crashed in to the buildings. the thoughts of this national security just changing as we watched the towers hit the ground. The question is: was 9/11 really caused by the government, there is enough proof in my opinion to not out rule anything in my book. Things I know for a fact is the bin laden was paid billions of dollars from the us government back in the day when he worked for the CIA. I personally believe that a good percent of that money funded alqaida. The reason that the government destroying two of their own buildings is a theorie just to get moral support for the war, is because we see it in history. Hitler burned down a building and blamed it on the jews to get propaganda and support from the people to go to war. The whole trajedy to me is a shame and its very shady it doesnt leave me with enough evidence to just say there was no us involvment. Leaves me very confused.