The masked gunman was filmed firing a pistol toward federal law enforcement officers around 2:26 p.m. Thursday.

Attacks perpetrated by lone actors are the biggest terrorism threat to July 4th festivities in New York City and elsewhere, ...

In a joint bulletin, the FBI, Department of Homeland Security and other law enforcement agencies said individuals or small ...

Intelligence bulletins sent out ahead of the holiday warn of copycat attacks and homegrown extremists targeting July 4 ...

The Department of Homeland Security and the FBI are concerned about the potential for copycat attacks from the New Orleans ...

Special events with high attendance and media coverage remain attractive targets for lone offenders and violent extremists ...

Just weeks before he was set to go on trial, a former U.S. Customs and Border Protection officer admitted that he conspired ...

DHS said the law enforcement activity was part of an investigation into immigration and potential child labor violations.

As millions of Americans prepare to celebrate this Fourth of July holiday weekend, authorities across the country are on alert for potential lone wolf attacks.

FBI and DHS are providing support and equipment on scene in Coeur d’Alene, Idaho where 2 firefighters were killed in an ...