FILE - In this Nov. 6, 2012 file photo, Ivan Marquez, chief negotiator of the Revolutionary Armed Forces of Colombia, or FARC, answers questions at a press conference at the headquarters of the Cuban agency Prensa Latina in Havana, Cuba. 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, Marquez, a rebel former seminarian and Humberto de la Calle, a sage veteran of Colombian politics, sit down to negotiate in earnest in Havana. (AP Photo/Jorge Perez, Prensa Latina, File)

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