Across the country law enforcement agencies are preparing for Independence Day but it's not only the wayward and illegal fireworks they're worried about.
The threat of a terror attack is a reality cops live with everyday but on major holidays, where large groups of people gather, it's an even bigger concern.
That's why the LA County Sheriff's Department, working with the Department of Homeland Security, planned one of its biggest drills and deployments of the year to coincide with the Fourth of July.
Starting today, throughout the county, those who use public transportation will see more deputy's than usual.
Read more: myfoxla.com