World trade centre building 7
World Trade Center Seven collapsed on September 11, 2001, There were no known casualties due to this collapse. The performance of WTC 7 is of significant interest because it appears the collapse was due primarily to fire, rather than any impact damage from the collapsing towers.
According to the government site, On September 11, WTC 7 collapsed It is suggested. No significant evidence is offered to back up this suggestion (after all it is only a suggestion). It should be emphasized that WTC 7 was neither hit by an aircraft nor by significant quantities of debris from the collapse of the twin towers. It is also widely claimed that WTC 1 and WTC 2 collapsed mainly due to fire. before September 11, no steel framed skyscraper had ever collapsed due to fire. However, on September 11, it is claimed that three steel framed skyscrapers collapsed mainly, or totally, due to fire.
The world was shoked due to this collapse, others were thinking of what they will going to do if they are people were there, a hundreds of people died, it waz real shoked.
According to the report, the al qaeda group leader osama bin laden sent his members to destroy to buildings in New York.
It was reported that al qaeda sent a letter few days ago concerning the warning that they r goin to destroy the building in USA.