"We are enhancing security measures and coordinating intelligence-sharing to proactively address potential risks," a DHS spokesperson told Newsweek.

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

Law enforcement issues ‘lone wolf’ July 4 attacks warning - The joint bulletin warned the public to stay vigilant, ...

Special events with high attendance and media coverage remain attractive targets for lone offenders and violent extremists seeking to cause mass casualties or draw attention to their causes.

A lone wolf actor poses the biggest threat to Fourth of July celebrations in New York and San Francisco, according to ...

There could be a hurricane nearing the United States as the Fourth of July approaches. Over the past week, a Pacific storm has been gaining in strength, rising from a tropical depression into a ...

The FBI and Department of Homeland Security have said lone wolf attacks pose the biggest threats to July 4 celebrations this year in New York City and San Francisco. Intelligence bulletins sent ...

Attacks perpetrated by lone actors are the biggest terrorism threat to July 4th festivities in New York City and elsewhere, federal authorities said in a threat assessment obtained by CNN.

Just one month before that massacre, the FBI and DHS warned about the threat of violence from lone offenders and the potential use of vehicle ramming, according to two internal memos obtained by CNN.

The FBI, the Department of Homeland Security and other law enforcement agencies issued a joint bulletin in late June saying “the most significant terrorism threat facing the Macy’s 4th of July ...