In this June 19, 2012 photo, a Panama border police officer points as he begins to patrol in the Darien province, on the border with Colombia, in Yaviza, Panama. Panamanian authorities began noticing five years ago that the Darien Gap, the only interruption in the Pan-American Highway, was being used by migrant smugglers, usually to move people from Asia and Africa. Panama’s Public Safety Minister Jose Murillo says that the movement of people from Asia and Africa has tapered off but that hundreds of Cubans are now taking the arduous Darien Gap route toward the United States. (AP Photo/Arnulfo Franco)