Article: Federal Officials Probe Fireproofing at WTC.

By Greg Gittrich, Daily News, New York Knight Ridder/Tribune Business News

May 8--Federal officials investigating the collapse of the twin towers are examining whether the Port Authority used enough spray-on fireproofing to protect the skyscrapers, an interim report released yesterday revealed.

The fireproofing covered all the steel-floor components of the 110-story towers.

The PA, which owned the skyscrapers, has maintained that the buildings' innovative design met or exceeded city building codes. It stood by that position yesterday.

Federal investigators said they have yet to find any technical basis to explain how the PA ...

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