David Clarke, Milwaukee County Sheriff and Trump Supporter, Resigns

A divisive figure who rose to national attention last year during the Republican National Convention, Mr. Clarke previously said he had been offered a Homeland Security post.

New Hazard in Storm Zone: Chemical Blasts and ‘Noxious’ Smoke

By JULIE TURKEWITZ, HENRY FOUNTAIN and HIROKO TABUCHI August 31, 2017 HOUSTON — A series of explosions at a flood-damaged chemical plant outside Houston on Thursday drew sharp focus on hazards to public health and safety from the...

U.S. Moves to Build Prototypes for Mexican Border Wall

The Department of Homeland Security awarded contracts to four companies for concrete wall prototypes to be built in the San Diego area.