Colombia's government head of negotiators Humberto de la Calle (C) speaks next to delegation members prior to boarding a plane to Oslo, at a military airport in Bogota October 16, 2012. Colombia's government and Marxist rebels will start peace talks as planned on Wednesday in Oslo in a bid to end nearly half a century of conflict after logistical problems delayed departure of the delegates, Colombia's government said. REUTERS/John Vizcaino