FILE - In this Jan. 24, 2013 file photo, Humberto de la Calle, head of Colombia's government negotiation team, arrives for a press conference on the sidelines of peace talks with the Re

 

              FILE - In this Jan. 24, 2013 file photo, Humberto de la Calle, head of Colombia
FILE - In this Jan. 24, 2013 file photo, Humberto de la Calle, head of Colombia's government negotiation team, arrives for a press conference on the sidelines of peace talks with the Revolutionary Armed Forces, or FARC, in Havana, Cuba, The Colombian government's chief negotiator claimed on Wednesday that the retention of two policemen on Jan. 25, 2013 in southwestern Colombia by FARC rebels is undermining the negotiation process. (AP Photo/Franklin Reyes, File)