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Colombian President Juan Manuel Santos’ peace negotiations with his country’s FARC Marxist guerrillas could have widespread international repercussions: If the talks succeed, they could, among other things, drive the U.S. government to remove Cuba from its list of terrorist nations. Here’s why: Cuba, which is playing a key mediation role in Colombia’s peace talks, was kept on the U.S. State Department’s annual black list of “sponsors of terrorism” earlier this year — alongside Iran, Sudan and Syria — mainly because it gives safe haven to FARC rebels and members of the Basque separatist group ETA.