Central Americans Undertake Grueling Journey Through Mexico To U.S.

IXTEPEC, MEXICO - AUGUST 06: A volunteer passes out sweets to migrants at the Hermanos en el Camino (Brothers in the Road), shelter on August 6, 2013 in Ixtepec, Mexico. The shelter, founded by Solalinde Guerra in 2007, houses and feeds immigants, mostly from Central America, during a stop on their train route through Mexico towards the U.S. border. Thousands of migrants ride atop the trains during their long and perilous journey through Mexico. Many of the immigrants are robbed or assaulted by gangs who control the train tops, while others fall asleep and tumble down, losing limbs or perishing under the wheels of the trains. Only a fraction of the immigrants who start the journey will arrive safely on their first attempt to illegally enter the United States. (Photo by John Moore/Getty Images)