Colombian President Juan Manuel Santos said Friday he was willing to negotiate with the United States to allow a jailed FARC leader participate in peace talks — a long-standing demand of the leftist rebels. “If it is important to achieve peace, I don’t have any problem acting on this,” the president said when asked about his stance on FARC leader Simon Trinidad during an interview with Caracol Radio. Trinidad, 63, whose real name is Juvenal Palmera, was extradited to the United States December 31, 2004 and sentenced to 60 years in prison for the abduction of three US citizens, who were held for four years by the FARC after their capture in Colombia.