January 23, 2009 10:42 am Billion-Dollar San Diego Convention Center Makeover? A billion-dollar San Diego Convention Center expansion may be required to keep mega-events like ‘Comicon’ from taking their convention to another city. US & World Videos 2:32 How water pollution is changing how Imperial Beach lifeguards protect people 2:56 Pro-Palestinian protesters move to downtown jail 3:03 San Diego photographer remembers Callum Robinson, surfer found in Baja 2:41 Friends and family remember 3 surfers who disappeared in Mexico 2:47 Jewish community gathers for Holocaust commemoration in La Jolla