Homeland Security Secretary Alejandro Mayorkas argued it is “not fair” to say that the city of New Orleans ignored the bulletin on the risks of attacks by drivers plowing cars into crowds of people.

Days following the deadly attack in New Orleans, Homeland Security Secretary Alejandro Mayorkas said the attack was not a border issue, disputing President-elect Donald Trump’s earlier rhetoric.

"It is a very difficult threat landscape," DHS secretary says. Homeland Security Secretary Alejandro Mayorkas warned in an interview Sunday on ABC's "This Week" of a "very difficult threat ...

Department of Homeland Security Secretary Alejandro Mayorkas said Thursday the United States won’t allow an "atmosphere of fear" to prevail after a deadly terror ...

In an interview on ABC's "This Week," Homeland Security Secretary Alejandro Mayorkas warned of a "very difficult threat landscape" after the New Orleans truck attack. Sources tell ABC News that ...

WASHINGTON — In an interview Sunday morning on ABC's "This Week," Homeland Security Secretary Alejandro Mayorkas warned of a "very difficult threat landscape" in the wake of the New Orleans ...

Days following the deadly attack in New Orleans, Homeland Security Secretary Alejandro Mayorkas said the attack was not a border issue, disputing President-elect Donald Trump's earlier rhetoric. The ...