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Final probe into WTC7 tower collapse set to start

FINAL STRUCTURAL analysis of the unexplained collapse of the 'third tower' at the World Trade Center will begin in April, the US team investigating 9/11 confirmed this week.

WTC7 was a 47 storey building that was damaged and set on ' by debris from the collapsing twin towers. Experts were initially baffled by its sudden collapse after seven hours of multifloor fires.

The investigation of WTC7's demise was added to the brief of the National Institute for Science & Technology (NIST) in August 2002. NIST has now said it hopes to award the contract for 'development of WTC7 structural models and collapse hypotheses' in the near future.

'We hope to publish a draft report for comment by the fall (autumn)', a spokesman added.

As on the investigation into the Twin Towers, the analyses will be carried out by independent specialist consultants.

NIST said it had taken so long to get to this stage of the WTC7 investigation because the Twin Towers were a priority.

'We did have staff allocated to WTC7 at the beginning, but when we realised how complex the Twin Towers project would be we switched all resources over there.'

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