By Julia Symmes Cobb BOGOTA (Reuters) – Colombia’s peace talks with Marxist FARC rebels were in crisis on Monday as troops scoured a Pacific coast region for an army general kidnapped over the weekend in a brash move by guerrillas that endangers efforts to end 50 years of war. President Juan Manuel Santos suspended the negotiations in Havana after General Ruben Dario Alzate, who heads the Titan task force in the western department of Choco, was captured by the Revolutionary Armed Forces of Colombia (FARC). …