Make no mistake, this happened before when the US allowed radioactive isotopes as well as different militarized strains of bacteria and toxins to be tested over several US cities in the late 1950's and 1960's.
Governments don't like whistle blowers, as Manning, Snowden and Assange will prove.
Because the government likes its secrets to remain secret. Because the government knew that 9/11 was going to happen and either let it happen or assisted in it happening. Because the 9/11 commission was a sham.
Who cares? She's a bit of a nut and there is little to no substantiation for most of her many and varied claims.
Your entire premise is a hoax.
Why was Sibel Edmond's testimony excluded from the official 9/11 report?
Sibel Edmonds worked as a Turkish translator and language specialist for the FBI from 1996 to 2002. She testified before the 9/11 commission about her career in the FBI. In April of 2001, she and others received word from an Iranian intelligence officer that Bin Laden's followers planned to strike major U.S. cities with hijacked commercial airliners. She claimed to alert the higher authorities, but they refused to listen.
"FBI Informant Revealed 9-11 Plot in April 2001."
http://www.nswbc.org/Op%20Ed/FBI%20&%20911.htm
"Clues Alerted White House to Potential Attacks."
<>>>>http://www.foxnews.com/story/2002/05/17/clues-alerted-white-house-to-potential-attacks/>