Egyptian security forces detained two airport workers linked to the metro-jet airplane crash in late october. The detentions come after russian authorities revealed that the metro-jet airplane was blown up using a home-made bomb with the equivalent of one kilogram of TNT. the ELN guerrillas liberated two soldiers captured during clashes in the province of Boyacá. French president Francois Hollande announced he will seek a package of constitutional amendments to acquire more powers to fight terrorism. U.S. secretary of state John Kerry is visiting Paris to discuss further cooperation with France, in the fight against the islamic state group.