Pope Francis (R) greets Colombian president Juan Manuel Santos prior to a meeting, on January 16, 2016 at the Vatican. / AFP / POOL / VINCENZO PINTO

Pope Francis (l) speaks with Colombian president Juan Manuel Santos prior to a meeting, on January 16, 2016 at the Vatican. / AFP / POOL / VINCENZO PINTO

Pope Francis (C) greets Colombian president Juan Manuel Santos (L) and his wife prior to a meeting, on January 16, 2016 at the Vatican. / AFP / POOL / VINCENZO PINTO

Pope Francis (l) speaks with Colombian president Juan Manuel Santos (R) and former president Alvaro Uribe prior to a meeting, on January 16, 2016 at the Vatican. / AFP / POOL / VINCENZO PINTO

Colombian president Juan Manuel Santos (R) and former president Alvaro Uribe listen to the Pope prior to a meeting, on January 16, 2016 at the Vatican. / AFP / POOL / VINCENZO PINTO

Pope Francis (R) receives «The pencil of the peace» from Colombian president Juan Manuel Santos prior to a meeting, on January 16, 2016 at the Vatican. / AFP / POOL / VINCENZO PINTO

Pope Francis (L) speaks with former Colombian president Alvaro Uribe prior to a meeting, on January 16, 2016 at the Vatican. / AFP / POOL / VINCENZO PINTO

Pope Francis talks to Colombian President Juan Manuel Santos, left, and former President Alvaro Uribe, right, during a meeting at the Vatican, Friday, Dec. 16, 2016. Pope Francis brought Colombia’s president and his main political opponent together to discuss the country’s rebel peace deal Friday, making a remarkable personal intervention to seal an accord ending Latin America’s longest-running conflict. (L’Osservatore Romano/Pool photo via AP)

Pope Francis talks to Colombian President Juan Manuel Santos, center, and former President Alvaro Uribe, left, during a meeting at the Vatican, Friday, Dec. 16, 2016. Pope Francis brought Colombia’s president and his main political opponent together to discuss the country’s rebel peace deal Friday, making a remarkable personal intervention to seal an accord ending Latin America’s longest-running conflict. (L’Osservatore Romano/Pool photo via AP)