Here's what you need to know about how federal agents are trained to kill people and call it self-defense. In February 2013, the Police Executive Research Forum delivered a report to Customs and Border Protection that should have ended careers. Instead, CBP tried to bury it. The nonprofit had reviewed 67 use-of-force incidents from January 2010 through October 2012 that left 19 people dead along the southern border. What they found was a pattern so egregious it read like a tr