Federal mediator George Cohen, right, exits a building where contract negotiations were taking place between Bay Area Rapid Transit management and local union leaders on Thursday, Oct. 17, 2013, in ... more 
Federal mediator George Cohen, right, exits a building where contract negotiations were taking place between Bay Area Rapid Transit management and local union leaders on Thursday, Oct. 17, 2013, in Oakland, Calif. San Francisco Bay Area Rapid Transit workers may go on strike at midnight unless management agrees to enter into arbitration to resolve a remaining issue, a union leader said Thursday. (AP Photo/Ben Margot) less 
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Associated Press | Photo By Ben Margot
Thu, Oct 17, 2013 9:11 PM EDT