This is from someone who doesn't know whether those massive steel pylons were covered in concrete or not! It's a shame some on this thread don't seriously answer the valid questions raised here instead of mantras. I strongly suggest you find a real physicist or mechanical engineer and get him/her to watch Building 7 come down neatly in 6.5 secs.,and ask whether a few fires did that? Some people still believe in tooth fairies and ghosts too.
