Paraphrasing the SOB - Smiling and yucking it up with someone one second, then slitting their throats the next.
This is what we are dealing with in the war on terror.
Mohammed Atta's PhD supervisor and head of the faculty of town planning at the university of Hamburg-Harburg.
I knew Mohammed Atta well. Or rather, I knew a man who called himself Mohammed el-Amir - a pleasant, personable and very intelligent young man. I taught him. He consulted me. We had long and detailed academic discussions. When I hear things about Mohammed Atta, I have this image in front of me of Mohammed el-Amir. But it is not easy to reconcile the two. Mohammed el-Amir was just not decipherable as the "terror pilot" Mohammed Atta.
The perfectly possessed are quite functional and efficient in their everyday life. Atta was a pathetic puppet of Satan, dressed for success in the western world.