Despite Crackdown, Migrants Stream Into South Mexico

Four Salvadoran men in jeans and T-shirts trudged along the railroad tracks under a hot sun, their steps carrying them steadily toward a fuzzy but seductive dream.
They had been in Mexico for only a few hours and already federal police officers had forced them to strip and had taken almost all their cash, they said. They had some 1,500 miles to go to reach the United States border, with no food or water and $9 each.