Riot Police Prepare for Election Day

Police departments in cities across the country are beefing up their ranks for Election Day, preparing for possible civil unrest and riots after the historic presidential contest.

Cities that have suffered unrest before, such as Detroit, Chicago, Oakland and Philadelphia, will have extra police deployed.

In Oakland, the police will deploy extra units trained in riot control, as well as extra traffic police, and even put SWAT teams on standby.