20 minute video, but worth watching. Quick background. There were 3 structures that collapsed on 9/11. The twin towers were attacked by planes, but the 3rd structure, WTC7 was supposedly brought down by office furniture catching fire from embers released by the twin towers. The University of Alaska, Fairbanks just finished a 4 year $300,000 study that proves definitively that WTC7 could only have collapsed the way it did from a planned demolition using explosives.