A BART transit police officer rides a train though San Francisco's Civic Center station on Saturday, Aug. 13, 2011. Transit officials said Friday that they blocked cell phone reception in the station ... more 
A BART transit police officer rides a train though San Francisco's Civic Center station on Saturday, Aug. 13, 2011. Transit officials said Friday that they blocked cell phone reception in the station on Thursday to prevent rumored protests which never developed. (AP Photo/Noah Berger) less 
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Associated Press | Photo By Noah Berger
Sat, Aug 13, 2011 5:45 PM EDT