Top negotiators at Colombia talks met before - Article Photos 4/5

FILE - In this Oct. 16, 2012 file photo, Humberto de la Calle, chief negotiator for the Colombian government, speaks to reporters at a military airport before embarking to Oslo, Norway for peace talks with members of Colombia's Revolutionary Armed Forces (FARC), in Bogota, Colombia. The two chief negotiators didn't shake hands or look at one another as talks to end Colombia's stubborn five-decade-old conflict were inaugurated in Norway last month. On Monday, Nov. 19, 2012, the rebel former seminarian known as Ivan Marquez and de la Calle, a sage veteran of Colombian politics, sit down to negotiate in earnest in Havana. (AP Photo/William Fernando Martinez, File)