Hijackers on board unproven: As evidence that Arabs were involved in 9-11, the Nidal-Atta connection is not very convincing since there is as yet no incontrovertible evidence that any Arab hijackers were on board or piloted the planes to their target. There is, on the other hand significant evidence to show that

--no human could have piloted Flights 175 and 77 in accordance with the Official Conspiracy Theory, (In that bank into the South Tower at 575 mph, the controls of a Boeing 767 would become almost impossible for a human pilot to handle because of built in Flight Control Computer program.)

--no way for Mohammed Atta or any Arab to trick the USAF to stand down for an hour while they flew around the Northeast, directly over USAF bases without a notice or interception

--no way for jet fuel to burn any hotter than 1110° F.-1740° F. and only when steel is at a temperature of 2000° F-2550° F can it be deformed by heavy force.
steel angle connectors at the perimeter would not be heated any more than 1000° F. because the heat would be conducted away by the steel façade. This is the temperature of a cook stove on medium.

--no way for a carbon nose cone of a Boeing 757 to slam through a foot thick reinforced wall and not leave debris outside the exit point at the Pentagon,
no way for cellphones to function at that altitude and speed, (So who made those calls?)

--no way for a building to fall at the rate of free fall and still encounter masses on the way down.

--a Zionist had won a $3.2 billion lease for WTC 1 and 2 in July and had insured it for $3.55 billion should it be attacked by terrorists. He claimed two terrorist attacks for $7.1 billion.

--Vice President Cheney was in charge of at least 6 training exercises on 9-11, three of which involved real planes simulating hijackings
and so on