To Serve and Protect & Coming to America

Thomas Morton goes to Ferguson, Mo--the scene of the Michael Brown shooting--for this look at how U.S. SWAT teams and police are being trained and how they are getting military-grade equipment to police their communities. Suroosh Alvi visits El Salvador to see the conditions that are motivating mass migration on top of a network of trains, called 'The Beast,' to get to the U.S.