It's one of those times when an innocuous comment in an unrelated news report triggers a revelation.
In the article at  http://afrocubaweb.com/news/israelispying.htm there is the following paragraph:

"To make the situation worse, a private security company called ICTS, owned by an Israeli, Ezra Harel, and registered in the Netherlands, was employed at Charles de Gaulle airport to screen passengers boarding US planes. Most of its personnel are ex-Shin Bet officers. The company covers security at Boston's Logan airport, where the American Airlines plane came down after flight attendants and passengers overpowered Reid."
The point of the article was that ICTS knew shoe bomber Richard Reid was dangerous, but allowed him on board a flight from Tel Aviv to Paris. Maybe they did and maybe they didn't. But the idea that an Israeli owned company had inside access to the airport used to launch an abortive terror attack brought to mind the strange message Odigo Systems, another Israeli owned company with offices near the World Trade Towers, received that warned of the impending attacks before the hijacked planes had even left the ground.

So, I went back to another story that had surfaced briefly, reported at www.worldnetdaily.com/news/article.asp?ARTICLE_ID=26626 about how at least one hijacker had smuggled a GUN aboard one of the hijacked planes. Even prior to 9-11, getting a gun on board a passenger plane represented a serious lapse of security. I wondered why this story of a gun was being concealed behind talk of box cutters and screwdrivers.

Then I went back to the first article and its mention that ICTS handled security at Logan International Airport, from which two of the 9-11 hijacked planes had departed.

Sure enough, a visit to ICTS' own web site at  http://www.icts-int.com/ confirms that ICTS is in fact an Israeli owned company, and that it sells services to every airport from which the hijacked planes operated, including security, sometimes through wholly owned subsidiaries like Huntleigh USA Corporation.

It has been suggested that the incredible feat of hijacking four aircraft without a single arrest at the gate would require the resources of a nation-state. This is even more true with the revelation that at least one gun had managed to be aboard a hijacked plane. One company had automatic inside access to all of the airports from which hijacked planes departed on 9-11, and to the airports used by Richard Reid, the shoe bomber. An Israeli company. One that Mossad agents could easily find employment with without the management knowing who they were or what their purpose really was.

But one thing is clear. By virtue of the Odigo warning, someone knew enough about the planned attacks to warn Odigo before the planes had even departed the airport gates, yet they did not call the Israeli security company at the airports which could have stopped the flights from leaving.

Think about that one for a while.

Hours before the House version of the first Patriot Act went to a vote, "technical corrections" were inserted into the body of the legislation whereby foreign security companies such as ICTS-International would be immune from lawsuits related to the events of 9/11. Talk about not being available for deposition! This "Patriot" act legislative sleight of hand occurred before the inception of the 9/11 Commission when Fearless Leader George W. Bush was still resisting the very IDEA of an investigation into 9/11. Hence, in the face of an institutional cover-up, citizens were denied the possibility of a discovery process which is normally afforded to litigants. Without such discovery process, ICTS-International would never be compelled by a court of law to give testimony and show evidence related to the missing airport video surveillance tapes of 9/11 or any other aspect of security measures in place on 9/11. [rense.com]

"Evidence linking these Israelis to 9/11 is classified. I cannot tell you about evidence that has been gathered. It's classified information."
US official quoted in Carl Cameron's Fox News report on the Israeli spy ring.

"Investigators within the DEA, INS and FBI have all told Fox News that to pursue or even suggest Israeli spying ... is considered career suicide."
Carl Cameron, as quoted in The Spies Who Came In From The Art Sale

"While I agree with you, if I say anything about US geopolitical interests with Israel, I might as well clean off my desk."
Unnamed reporter as quoted in American Media Censorship and Israel