I don't believe all muslims are a threat. In most exstreamist groups there are a few that set the tone for the group. Look at the enviromental and animal rights groups. As for the US Government behind 9/11, the only proof is that GW was president and he is the root of all of the US problems sense 1775. Some how for those eight years. congress had no power to do anything, but the president did. If Al Gore had been president this would be a non issue.
"You can get a lot accomplished if you don't care who gets the credit" - Ronald Reagan