Investigation December 10, 2020 6:27 pm What Does the New Coronavirus App in LA County Do? A new app is aimed at letting you know if you’ve been exposed to the coronavirus — but here’s what it doesn’t do. Lolita Lopez reports Dec. 10, 2020. US & World Videos 4:09 Parents speak out after son's beating at LA juvenile hall 3:30 How Los Angeles officials are responding to UCLA campus chaos 2:47 The LA County Fair kicks of 2024 season in Pomona 3:09 USC updates graduation plans as protest continues 4:28 Southern California artistic swimmers train for 2024 Paris Olympics