
A construction site for a border wall near Santa Elena Canyon in Big Bend National Park in August.

A construction site for a border wall near Santa Elena Canyon in Big Bend National Park in August.

An ad that was approved by President Trump and paid for by U.S. Customs and Border Protection.

Employees of the Homeland Security Department feared that the surge of enforcement in Minneapolis would lead to a loss of legitimacy.

The Locust, an anti-drone laser system that has been used recently along the border with Mexico, last month in Albuquerque, N.M.
