The last post is of course just one in a myriad of cases where the intelligence agencies looked away as terror was being planned. Have a look at this old 9/11 info.
(Video at 1:35) He had "pasted a page of the Koran in his passport." That's what a patsy does, giving obvious information to later be discovered as proof. Of course he isn't detained.
The video says the CIA was informed but that they denied that they were informed. However other sources show that the CIA were actively monitoring militants passing through Dubai airport.
In any case, the US consulate in Jeddah was used to bring militants into the US at least in the 80s. According to Head US Consular Official Michael Springmann "the Jeddah consulate was run by the CIA and staffed almost entirely by intelligence agents. This visa system may have continued at least through 9/11, and 11 of the 19 9/11 hijackers received their visas through Jeddah (see November 2, 1997-June 20, 2001), possibly as part of this program (see October 9, 2002 and October 21, 2002)."
Of course the video above also mentions Able Danger's warnings to the Pentagon about Mohammed Atta and his gang (video 8:10), but no action was taken.
Action is being taken by Pentagon authorities however to make sure a new book on Able Danger is censored from public view.