Reactions to Trump’s mass deportation vow Reactions to president-elect Donald Trump’s mass deportation promise 02:44 Nogales, Mexico — Ivan Castro Santos, his wife and their four children, including 1-year-old triplets, have been living in a crowded room over the past four months, waiting for an opportunity to enter the U.S. The young family traveled from southern Mexico to the House of Mercy and All Nations shelter in the northern Mexican border city of Nogales, joining other migrants from across Latin America. Half of them are children. All of them have one objective: finding work and safety in the U.S. Castro Santos, 22, said he and his wife, Fatima Gonzalez Hernandez, 19, decided to leave Guerrero, Mexico, because of “the crime and the risk to the children” there. “To protect them,” he added in Spanish, looking at his young children. Tens of thousands of migrants are estimated to be in Mexico, hoping to enter America, including through a program that allows them to use a smartphone app to request a time to be vetted, processed and admitted by American border officials. The system was established by