Hamas and their allies love these videos.

(Video) Joy in the Muslim world over 9-11 

For those in the doomed planes, their last words heard were "Allahu Akbar!"

And, as we have since learned, on Western college campuses. 

Hamas' barbaric attack on Israel evokes memories of Nazi atrocities   "Ezra Levant looks at terrifying footage from Israel following Hamas' barbaric terrorist attack against the Jewish state. The atrocities evoke memories of Nazi Germany's treatment of Jews, except in some ways, as Ezra explains, this attack was even worse."

The Questions We Must Ask About Islam | The American Spectator