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

Former Secret Service agent discusses enhanced security protocols for Fourth of July celebrations across the country amid ...

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

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

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

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

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

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.

A joint bulletin issued by the FBI, DHS, and other agencies warned that lone individuals and small groups represent the primary terror threat to the Macy's July 4 fireworks celebration.

A lone wolf actor poses the biggest threat to Fourth of July celebrations in New York and San Francisco, according to multiple intelligence bulletins obtained by ABC News.