Please watch the videos below. One of the videos below shows orange-yellow dripping metal at the corner of one of the trade center towers from 911. There was a theory that the stuff dripping out the corner of the WTC tower shown in one of the videos was molten aluminum, but alas, molten aluminum ...well watch the first video for that. Then - please watch the second and third - apply common sense - what makes sense to you?
Molten Aluminum at 1800F
Demonstration of Thermite
UPDATE JUNE 9, 2009 Obama, as on everything else, agrees with Bush on 911: