Yes but don't forget the advances in technology- GPS most importantly. We have cruise missiles that travel very long distances and can hit a target the size of a car. I don't doubt that the technology exists to steer a large plane into a building. They could have waited for the planes to take off, then took control while in the air and guided them to the targets. We'll never know. But I do think its pretty fishy that they classified those black boxes for "national security". Obviously they don't want anybody to know what was going on in those cockpits. I personally doubt it was a bunch of muslims shouting "praise allah!".
Edited by StrayCat, 07 May 2010 - 03:57 PM.