There are no REASONABLE explanations for the molten metal at the world trade center 6 weeks after 9-11 if you subscribe to the government explanation. It is impossible for jet fuel to melt steel no matter how long it's exposed to jet fuel fire. If there is no way jet fuel can melt steel then how is it possible for steel to continue to be melted and yellow hot 6 weeks later? Professor Steven Jones has an explanation:
http://www.supportthetruth.com/jones.php
Don't be side track by explations that are not based on facts not based on physics and material science when considering the molten metal at wtc issue.