California Governor Gray Davis says he has received "credible" information that major bridges in the state - including the Golden Gate Bridge - could be targeted for attack.
The best preparation is to let the terrorists know we know what you're up to, we're ready, it's not going to succeed
Governor Gray Davis He said that information "from several different sources" spoke of a possible attempt to blow up the bridges during the rush hour between 2 and 7 November.
He said that there were no plans to close the bridges, and it was up to commuters to decide whether to drive over them in the coming days.
The bridges at risk, according to Governor Davies. include the Golden Gate and Bay Bridges in San Francisco, the Vincent Thomas Bridge in Los Angeles and the Coronado Bridge in San Diego.
The Golden Gate Bridge has seen tighter security measures since 11 September, with pedestrian and bicycle traffic barred from the bridges for several weeks after the attacks on the World Trade Center.
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