Investigations

When it comes to immigration, which normally falls under the Department of Homeland Security, Noem would take direction from two other people, sources tell NBC News.

The president-elect may want to withdraw U.S. troops from the area, but if he does, he’d put a victory he’s proud of at risk.

The Justice Department in November charged an Iranian man in an alleged murder-for-hire plot to assassinate then-candidate Donald Trump and two other people.

P.J. Lechleitner also told NBC News he felt the Biden administration should have been more transparent and forthcoming on immigration.

The raid under consideration would target immigrants allegedly living in the U.S. illegally at a workplace in the metropolitan Washington area.

Advocates see more room for compromise with the Trump administration than some might expect.

By making a bomb with the powerful explosive RDX, Shamsud-Din Jabbar was mimicking the tactics of terrorist groups operating in the Middle East, experts say.

Accessing extremism online has never been easier, the threat has never been higher, and the ideology of those conducting attacks has never been more splintered.

Matthew Livelsberger was boasting about his rented Tesla Cybertruck to an old girlfriend on New Year's Eve, according to text messages shared with NBC News.

The Assad regime’s collapse in Syria could offer an opportunity for ISIS militants to gain more supporters and operating space, experts say.

A cloud of mystery hangs over the killing of Mosley, a mother, grandmother and deeply respected law enforcement leader in southern New Jersey.