'August 2001 - Israeli security issued urgent warning to CIA of large-scale terror attacks

"ISRAELI intelligence officials say that they warned their counterparts in the United States last month that large-scale terrorist attacks on highly visible targets on the American mainland were imminent.
The attacks on the World Trade Centre's twin towers and the Pentagon were humiliating blows to the intelligence services, which failed to foresee them, and to the defence forces of the most powerful nation in the world, which failed to deflect them.
The Telegraph has learnt that two senior experts with Mossad, the Israeli military intelligence service, were sent to Washington in August to alert the CIA and FBI to the existence of a cell of as many of 200 terrorists said to be preparing a big operation.
"They had no specific information about what was being planned but linked the plot to Osama bin Laden and told the Americans that there were strong grounds for suspecting Iraqi involvement," said a senior Israeli security official." - Telegraph (09/16/01)'