NBC 7 Investigates May 24, 2022 6:41 pm San Diego City Workers Rack Up $113 Million in Overtime Pay Staff hiring and retention problems blamed for increasing workload on city employees, reports NBC 7’s Alexis Rivas. US & World Videos 2:53 Shark scientists using new DNA technology to track white sharks in San Diego's waters 3:07 Donut festival abroad the U.S.S. Midway Museum 0:26 Crews battling fire across US-Mexico border near Otay Mountain 2:43 Large voter turnout at San Diego Mexican Consulate in Little Italy for presidential election 2:26 Shark attacks swimmer in Del Mar, beaches closed