On Saturday, at the busiest crossing point along Mexico’s porous southern border with Guatemala, evidence of Mexico’s promised crackdown on waves of new arrivals trying to reach the United States was nowhere to be seen. Within sight of a bridge connecting Mexico to Guatemala, a fleet of about 16 rafts carried migrants hoping to escape poverty and gang-related violence in Central America. Nothing else outwardly changed despite a deal struck in Washington on Friday in which Mexico vowed to stem the northern flow of migrants with a crackdown on illegal crossings across the Guatemala border.
