US border patrol agents have seen a 50% drop in the number of migrants crossing the border since the pandemic-era immigration policy known as Title 42 expired at midnight on Thursday, Homeland Security Secretary Alejandro Mayorkas said on Sunday.

WASHINGTON - Encouraged by a sharp downturn in illegal border crossers, the US administration is ramping up a crackdown on undocumented immigrants, taking aim at both Central American laborers and Indian tech workers in Silicon Valley.