[Angelino97]

The CIA knew all about 9/11 and took no action. They have admitted as much.

What did the CIA know about 9/11? What have they admitted? Do you have sources and links?

[RoosterRedux]

I have seen podcasts where retired and ex-CIA officers spoke on this extensively. Triggernometry has had guests on from the CIA (retired/ex) and even the MI5 that have spoken about this.

This is pretty common knowledge that the U.S. intel community knew this was coming and failed to act.

Unfortunately, you'll have to do your own research, but it shouldn't be too difficult to accomplish because of the large volume of anecdotal evidence.

[RoosterRedux]

Failures of intel operations are not rare. Even Mossad has admitted that it was aware of an attack by Hamas before it happened.

Israeli officials obtained Hamas’s battle plan for the Oct. 7 terrorist attack more than a year before it happened, documents, emails and interviews show. But Israeli military and intelligence officials dismissed the plan as aspirational, considering it too difficult for Hamas to carry out.

Source: NY Times

[RoosterRedux]

One additional note.

IIRC, the 911 Commission Report went right up to the edge of concluding that the CIA had actionable intelligence about the 911 attacks. Though the 911 Commission Report did not accuse the CIA of knowing the exact day of the attack in advance, it did conclude that the CIA could have and should have known, given the intel it had, that this attack was imminent.

This has been addressed by many former CIA officers (that the CIA had enough intel to act but didn't).

[Colinsky]

What did the CIA know about 9/11?

Local FBI agents were aware of Saudi men training to fly passenger jets while being indifferent about learning to land the planes. The reports were sent to DC and ignored.