San Francisco Holds Drill To Prepare For Terror Attack On Golden Gate Bridge

Members of the San Francisco Fire and Police Departments, the National Park Service, United States Coast Guard, California Highway Patrol, Presidio Fire Department, and San Mateo Harbor Patrol take part in a Aquatic Multi-Casualty Exercise in the San Francisco Bay. (David Paul Morris/Getty Images)

Members of the San Francisco Fire and Police Departments, the National Park Service, United States Coast Guard, California Highway Patrol, Presidio Fire Department, and San Mateo Harbor Patrol take part in a Aquatic Multi-Casualty Exercise in the San Francisco Bay. (David Paul Morris/Getty Images)

SAN FRANCISCO, CA – APRIL 23: Members of the San Francisco Fire and Police Departments, the National Park Service, United States Coast Guard, California Highway Patrol, Presidio Fire Department, San Mateo Harbor Patrol take part in a Aquatic Multi-Casualty Exercise in the San Francisco Bay on Friday April 23, 2004. The purpose of the drill was to coordinate a simulated rescue in the bay using all the responding agencies. (Photo by David Paul Morris/Getty Images)