Read the excerpt from "Children of the Drug Wars."The United Nations High Commissioner for Refugees recently interviewed 404 children who had arrived in the United States from Honduras, El Salvador, Guatemala and Mexico; 58 percent said their primary reason for leaving was violence. (A similar survey in 2006, of Central American children coming into Mexico, found that only 13 percent were fleeing violence.) They aren’t just going to the United States: Less conflicted countries in Central America had a 712 percent increase in asylum claims between 2008 and 2013.Read the excerpt from Enrique’s Journey.Enrique allows himself to doze only on trains farther north, where the gangsters no longer control the tops of the trains. There, he jams his body into the crevice on top of a hopper, next to the trapdoors used to fill the car. Or he waits until the train rounds a curve, giving him a good view of all of the cars. He spots a boxcar with its door open. When the train slows, he jumps off and races to the boxcar, jumping inside for a quick nap.