This thread is aimed to show once and for all the level of mental retardation on this website. For those who believe bombs, or missiles took down the Pentagon/Towers please go to this site and follow it up with the March issue of popular mechanics.
http://www.sciam.com/article.cfm?articleID=000DA0E2-1E15-128A-9E1583414B7F0000&chanID=sa008