(NewsNation) — 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.

Ongoing global conflicts, as well as possible copycats, have prompted a notice from federal law enforcement agencies urging the public to stay vigilant.

Former FBI agent Jennifer Coffendaffer told NewsNation that lone wolf attacks are the most common type of terrorism in the U.S.

"If you look over the past five years, 93% of attacks in the West have been by lone wolves," she said.

Federal agencies across the country are telling people to be........

© The Hill