JOHN PULLED OUT A stapled document from the folder. “You’ve heard of San Vicente del Caguan?” He scrutinized the faces staring at him. “I bet you didn’t know that Camilo’s and Andres’s dad was the head of the Revolutionary Armed Forces of Colombia—FARC for short—in that region?” he added, continuing to survey the two of them. “No, I didn’t think you did. Here’s something you may or may not be interested in: five years ago, the ...