“They [attackers] left ID. They would have been highly trained not to leave ID, so anyone who believes that has got to be pretty gullible,” he said.
This is just one theory. Many other people have suggested this was a false flag. Most desired wars are finally begun following one of these events. Pearl Harbor may be the most famous example. The US did not want to join WWII. But, after being attacked, we had our excuse. Americans supported entering the war.