St. Louis sergeant says there are white supremacists on police force

A growing number of police departments in America's largest cities told CBS News that they've added implicit bias training. Nevertheless, hundreds of officers in multiple states have been exposed for racist social media posts. In St. Louis, one sergeant whose department has officers at the center of the controversy said that the culture among her department's top brass is allowing bad cops – including potential white supremacists -- to slip through the cracks. Jeff Pegues reports.