May 24, 2022 6:43 pm Masks May Be Coming Back for Students, Staff at San Diego Unified San Diego County’s largest school district said the possibility will be determined on a school-by-school basis, reports NBC 7’s Allison Ash. US & World Videos 2:36 2018 shark attack survivor is now an Encinitas lifeguard 2:41 2 wildlife crossings proposed for I-15 north of San Diego County 2:25 Mission Bay Jet Ski driver faces vehicular manslaughter charge in death of child paddleboarder 3:04 Witness of Del Mar shark attack says victim ‘truly fought for his life' 2:53 Shark scientists using new DNA technology to track white sharks in San Diego's waters