Did you ever see the thread where there was pictures of personal items that belonged to the deceased? Leather wallet, plastic purses, etc. Wake up and start thinking, please.
Are the Feds hiding something or are they not? Have they given us, the public all the answers to our questions? NO!
The personal items belonged to people who were a LONG way from the impact floors, including many people who were in the multi-level underground shopping and parking areas, and others who were already outside the buildings after evacuating when the towers fell -- in other words, a good 80 stories away from the impact. None of that stuff came from the impact floors. Maybe some diamond jewelry could have survived from the impact floors, but even that would have been heavily encrusted with residue from the fire when found.