Mostly, you don't know because few corporate media venues will print this information. I will print it.
"A US military plane, not one piloted by al Qaeda, performed the highly skilled, steep, high-speed 270- to 330-degree dive towards the Pentagon that Dulles Air Traffic Controllers were sure was a military plane as they watched it on their screens that morning. Only a military aircraft, not a civilian plane flown by al Qaeda, would have given off the "Friendly" signal needed to disable the Pentagon's anti-aircraft missile batteries as it approached the building. Only the US military, not al Qaeda, had the ability to break all of its Standard Operating Procedures to paralyze its own emergency response systems on 9/11."
Barbara Honegger, who served as Special Assistant to the Chief Domestic Policy Adviser to President Ronald Reagan and as a White House Policy Analyst. "The US military and intelligence community, not al Qaeda, had the sustained access weeks before 9/11 to also plant controlled demolition charges throughout the superstructures of WTC 1 and WTC 2, and in WTC 7, which brought down all three buildings on 9/11," she wrote.
Honegger is a HIGH LEVEL analyst who is also Conservative. "White House Policy Analyst" is not an underling position, but a person who has the President's ear. That she served directly under Reagans White House staff officers indicates just HOW conservative she is.
This is not a liberal wing nut.
Neither are any of the others mentioned in this article. Col. Ronald D. Ray, and Morton Goulder are perhaps the highest profile people to ever call Shenanigans on ANYTHING. These people had Presidential security clearances. That means two things: They were privileged to this and other security information, and they were highly trusted and competent GOP PARTY members.
Agents of the US government have committed Treason against the People of America, and have attacked the United States using military tactics and equipment. This is a call to arms, people.
This is not a joke. This is not wishful thinking, or liberal bias, or any of that. This is revolution.