When did he know and what did he know

http://rawstory.com//news/2008/Was_Flight_93_shot_down_on_0723.html

Just wondering why this isn't news? This should be the most talked about story on air today. It's about the prosecutor, not defense attorney, saying that flight 93 was shot down. Here is the quote:

"If they hadn't shot down the fourth plane it would've hit the dome," Stone, a Navy officer, said in his opening remarks.

Now I want to know the following: What did Bush know (and if you remember he said he saw the first plane hit the World Trade Center when no one did) when did Bush know it and why did Bush not do anything (although that answer is completely obvious as I have stated previously). We have a right to know and remember he never testified under oath to the 9/11 commission so he very easily lied to them.