Humberto de la Calle, head of Colombia's peace negotiation team, speaks to 

Humberto de la Calle, head of Colombia's peace negotiation team, speaks to journalists before embarking to Havana for a round of talks with rebels of the Revolutionary Armed Forces of Colombia, FARC, at the military airport in Bogota, Colombia, Sunday, Nov. 18, 2012.   (AP Photo/William Fernando Martinez)
Associated Press
Humberto de la Calle, head of Colombia's peace negotiation team, speaks to journalists before embarking to Havana for a round of talks with rebels of the Revolutionary Armed Forces of Colombia, FARC, at the military airport in Bogota, Colombia, Sunday, Nov. 18, 2012. (AP Photo/William Fernando Martinez)
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