Protests, Technology and Crackdowns

During the UK riots, the British government asked Blackberry to block messages sent between protesters. Recently in San Fransciso, Bay Area Rapid Transit officials shut down cell service to curb a planned protest. Zeynep Tufekci, assistant professor of sociology at the University of North Carolina-Chapel Hill and author of the popular blog, discusses whether blocking social media is a legitimate law enforcement tool in a time of social unrest.