UFO at the WTC

The following are screen shots of a fast moving object that appears in the Naudet Brothers video of the first plane hitting the first WTC tower. I got these shots from a 9/11 Video called 9/11 Revisited. It is not a bird or helicopter it is moving too fast, at about 435 miles per hour. The foot per second speed is estimated based on the 24 frames per second speed of the video and the known distance across the WTC towers serves as a gage of distance.

http://www.v911t.org/UFO.php