Los Angeles County sheriff’s canine handler Craig Roberts follows his dog, Amor, through a subway car. Files found at Osama bin Laden’s compound in Pakistan indicate that Al Qaeda was considering an attack on U.S. rail targets. (Bob Chamberlin / Los Angeles Times)
Handler Craig Roberts and Amor patrol the entrance of a Metro Red Line station. L.A. County Supervisor Don Knabe says officials were not aware of any specific threats to the area’s rail network. (Bob Chamberlin / Los Angeles Times)
Metro has been criticized in the past for its slow response to security issues in rail stations. (Bob Chamberlin / Los Angeles Times)
L.A. County sheriff’s canine handler Codey Brown and his bomb-sniffing dog, Wilson, patrol the entrance to a Red Line Station on Friday May 6. (Bob Chamberlin / Los Angeles Times)
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Transit officials plan a number of security upgrades to L.A. County’s rail network over the next year, including a chemical-detection system and scores of new video surveillance cameras. (Bob Chamberlin / Los Angeles Times)
