Mexico has stepped up immigration raids -- hauling hundreds of people off trains in recent weeks -- to stem an increase in Central American migrants heading for the United States since President Joe Biden took office, according to advocates and data from immigration authorities.
The crackdown by immigration agents backed by the military and police marks an escalation of Mexico's efforts to control migration across its territory.
While Mexico has welcomed Biden's pledge to tackle the root causes of migration from Central America, it is concerned that the new administration's efforts to make it . . .
