File - In this Nov. 19, 2012 file photo, Humberto de la Calle, second from left, head of Colombia's government peace negotiation team, is accompanied by Sergio Jaramillo, left, and Gust

 

              File - In this Nov. 19, 2012 file photo, Humberto de la Calle, second from left, head of Colombia
File - In this Nov. 19, 2012 file photo, Humberto de la Calle, second from left, head of Colombia's government peace negotiation team, is accompanied by Sergio Jaramillo, left, and Gustavo Adolfo Bell Lemus, second from right, as they are escorted by a Cuban security official, right, to peace talks with the Revolutionary Armed Forces of Colombia, or FARC, in Havana, Cuba. While the angry rhetoric and bombs continue to fly back home, Colombian rebels and government negotiators in peace talks in the Cuban capital describe an increasingly collegial atmosphere and growing trust between otherwise mortal enemies. (AP Photo/Ramon Espinosa, File)