The artillery live-fire demonstration caused California officials to close Interstate 5 near Camp Pendleton at the last ...

The electronic device that was used is manufactured to a standard of “one defect in a million,” and no human error was found, Marine investigators said of the Camp Pendleton incident.

The failure was described in the report as extremely rare, with officials saying the device has a very low historical ...

Metal shrapnel from an exploding artillery shell fell and damaged a California Highway Patrol vehicle as personnel at a U.S. Marine Corps base fired live rounds over a highway - against the objections ...