Very notably, in June 2000, Atta traveled from Germany, where he was based, to Prague and met an Iraqi official there. Atta stayed there only 24 hours. That's the only purpose he had in going to Prague. He then flew to New Jersey on his first trip to the United States. He stayed here for six months, in that period of time taking pilot's training in Florida.
So.. Atta entered the US and got his flight training in the summer and fall of 2000. And who was watching out for us then?? Why it was col. klink!