Wargames US military and other authorities planned or actually rehearsed defensive response to all elements of the 9/11 scenario during the year prior to the attack - including multiple hijackings, suicide crashbombings!
The multiple military wargames planned long in advance and held on the morning of September 11th included scenarios of a domestic air crisis, a plane crashing into a government building, and a large-scale emergency in New York!
Multiple allied foreign agencies informed the US government of a coming attack in detail, including the manner and likely targets of the attack, the name of the operation (the "Big Wedding")!
Timelines: The various responsible agencies - NORAD, FAA, Pentagon, USAF, as well as the 9/11 Commission - gave radically different explanations for the failure (in some cases upheld for years), such that several officials must have lied!
U.S. Average Gas Prices
Did you know that on 10 SEpt 2001 RUMSFELD said over 2 trillion dollars was missing and guess where are the receipts were for this money? WTC'S #7!
George W. Bush, Donald Rumsfeld, Richard Myers, Montague Winfield - all found reason to do something else during the actual attacks, other than assuming their duties as decision-makers.
If you are unfamiliar with the subject of chemtrails, you should first read this general overview of the chemtrail spraying operations which began in 1999.