I would hope so!
"No, don't worry about it. Sure: 6th floor has gone up. But all the other floors are great!"
Actually it was the 13 floor, that was the critical element, and failure of the sprinkler system.
http://news.aol.com/article/feds-sa...y/143502?icid=100214839x1208147293x1200441530
Feds Say They've Solved 9/11 Mystery
By DEVLIN BARRETT,
Federal investigators said Thursday they have solved a mystery of the Sept. 11, 2001, attacks: the collapse of World Trade Center building 7, a source of long-running conspiracy theories.
The 47-story trapezoid-shaped building sat north of the World Trade Center towers, across Vesey Street in lower Manhattan. On Sept. 11, it was set on fire by falling debris from the burning towers, but skeptics have long argued that fire and debris alone should not have brought down such a big steel-and-concrete structure.
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"The reason for the collapse of World Trade Center 7 is no longer a mystery," said Dr. Shyam Sunder, the lead investigator on the NIST team.
Investigators also concluded that the collapse of the nearby towers broke the city water main, leaving the sprinkler system in the bottom half of the building without water
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The 77-page report concluded that the fatal blow to the building came when the 13th floor collapsed, weakening a critical steel support column that led to catastrophic failure.
"When this critical column buckled due to lack of floor supports, it was the first domino in the chain," said Sunder.
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n both instances, investigators concluded that extreme heat caused some steel beams to lose strength, causing further failures throughout the buildings until the entire structure succumbed.
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