Britain's Gang Violence Is Not A 'Quick Fix Issue'
In London, police are still struggling to draw lessons from the city's explosive riots weeks ago, wondering what role organized gangs played. And the British, in a controversial move, turned to an American for help. Bill Bratton — as a former police chief in New York City and later Los Angeles — spent years combating gang violence. Bratton talks to David Greene about what assistance he'll be providing Prime Minister David Cameron.