Operation Northwoods was a proposed false flag operation against the Cuban government that originated within the U.S. Department of Defense (DoD) and the Joint Chiefs of Staff (JCS) of the United States government in 1962. The proposals called for the Central Intelligence Agency (CIA) or other U.S. government operatives to both stage and actually commit acts of terrorism against American military and civilian targets. 

9 11 is widely believed to have been an inside job, an excuse to fulfilling the Wolfowitz doctrine. The Wolfowitz Doctrine is an unofficial name given to the initial version of the Defense Planning Guidance for the 1994–99 fiscal years (dated February 18, 1992) published by US Under Secretary of Defense for Policy Paul Wolfowitz and his deputy Scooter Libby. Not intended for public release, it was leaked to the New York Times on March 7, 1992 and sparked a public controversy about U.S. foreign and defense policy. The document was widely criticized as imperialist, as the document outlined a policy of unilateralism and pre-emptive military action to suppress potential threats from other nations.

Alan Greenspan (former chairman of the Federal Reserve) even admitted that the Iraq war was about oil.

https://www.amp.theguardian.com/world/2007/sep/16/iraq.iraqtimeline

There are many respected people who believe 9 11 was an inside job, this is not like the ridiculous flat earth movement, no reliable scientist will admit the earth is flat. Albert Stubblebine who is a former head of all US military intelligence questions the mainstream narrative of 9 11.

Dario Fo who won a Nobel Prize explains it was an inside job.

The Pentagon, it has the most advanced security system in the world but it did not capture footage of a plane hitting it.

Thousands of architects and engineers believe 9 11 was an inside job.

https://www.ae911truth.org

William Rodriguez who was in one of the towers and saved hundreds of people on 9 11 was shunned by the mainstream media for claiming he heard explosions before the plane hit.

Molten steel was found at the towers, the NIST denied it but the New York Times and many other witnesses have exposed it. Jet fuel cannot melt steel, what melted the steel? The New York Times reported:

Pieces of steel have also been found that were apparently melted and vaporized not solely because of the heat of fires, but also because of a corrosive contaminant that was somehow released in the conflagrations.

See more here about molten steel: https://www.dailymotion.com/video/x35zgra

Indeed scientists have studied the site of the towers and found explosive residue, why would this be here?

http://www1.ae911truth.org/faqs/201-scientists-find-unignited-explosive-residues-in-wtc-dust.html

Then there is the 3rd tower WTC 7, it is often forgotten but it collapsed on 9 11 also. It fell at free fall speed and it was not hit by a plane. The NIST said it collapsed due to fires but a recent 4 year computer modelling Alaskan university study concluded it did not collapse due to fires. 

https://www.ae911truth.org/wtc7

There are many coincidences and inconsistencies that make the conspiracy narrative seem the smarter one. See more in the link below:

www.rt.com/usa/nine-eleven-attack-job/amp/