Only days before the bombing in Saudi Arabia on Saturday that killed at least 17 people, American intelligence agencies had been warned that such an attack by Al Qaeda was imminent but the warnings lacked sufficient detail to disrupt the plot, officials said Sunday.
The information, which came from several sources, prompted the closing of the United States Embassy in Riyadh, but did not provide specifics about the time or location of an attack, officials said. It did lead American officials to conclude that Qaeda cells were planning to go after "soft" targets "very soon," one official said.
The chairman of the Senate Select Committee on Intelligence added Sunday that his panel had been briefed by intelligence officials about a week ago that an attack in Saudi Arabia appeared likely.
The suicide bomb attack blasted through a residential compound for foreigners in Riyadh. The attackers, who may have been disguised as police officers, shot their way into the compound and then set off a car bomb. The attack seemed similar to ones staged near foreign compounds in Riyadh on May 12, for which officials have also blamed Al Qaeda.
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http://www.nytimes.com/2003/11/10/international/middleeast/10INTE.html