Shooting at San Diego border crossing when U.S.-bound pickup doesn't stop

San Diego -- A U.S. Customs and Border Patrol agent was involved in a shooting at California's border with Mexico Monday evening but there was no early word on whether anyone was wounded.San Diego police said the shooting took place in a secondary vehicle inspection area.A CPB spokesperson told CBS News, "A white pickup truck arrived at the San Ysidro port of entry, along the San Diego/Tijuana border to enter the United States. The driver failed to stop for an inspection and there was an officer