- LA schools back in session, and a CDC report that says autism is high in children of color. Plus, the weekend's latest accolade-- these stories and more in tonight's "Rundown." [MUSIC PLAYING] REPORTER: Back to school for hundreds of thousands of kids in Los Angeles, after support staffers at schools ended their three-day strike. But they're still working without a contract deal in the second-largest public school district in the country. MALE: Everybody stop. [BLEEP] REPORTER: A district board meeting erupting into a yelling match and ultimately coming to an abrupt end, just days after the release of a controversial video released by Project Veritas of a Loomis pastor, Casey Tinnin, who runs an LGBTQIA+ youth group. Dozens showing up to the district board meeting to speak out during public comment, many expressing support for Tinnin and LGBTQIA+ students. REPORTER: North Korea claims it tested a nuclear capable underwater drone today. However, analysts are skeptical. North Korean officials say the drone is capable of creating a radioactive tsunami that would destroy naval ships and ports. But while analysts question the claims made by North Korea, they point out it does show the country's commitment to being considered a nuclear threat. REPORTER: A confrontation between two players in the post-game handshake line following Bowling Green's win over Memphis in the Women's National Invitation Tournament has resulted in a member of the Memphis team being charged with assault, according to the Bowling Green State University Police Department. Bowling Green is also conducting its own review of the incident. Video from the event appears to show the moment the players met during the post-game handshake. There was no immediate word about what caused the confrontation or if any player was seriously injured. Bowling Green said Thursday night in a statement that the incident is in the hands of the campus police. REPORTER: Child autism diagnoses are becoming more common. REPORTER: CDC researchers say it's likely doctors, parents, and communities are getting better at diagnosing children, especially among Black, Hispanic, and Asian-Americans. REPORTER: It's the first time we are seeing a distinction based on race. The CDC estimates that 1 in 36 children who were eight years old in 2020 had autism, and that is up from 1 in 44 two years earlier. But the rate rose faster for children of color. However, experts attribute the change to improved screening for the disorder, as services for all children with autism improves. It's important for parents to learn about the developmental milestones to watch out for in your child so you can recognize if your child deviates from that. And always consult with your physician. REPORTER: The Weeknd, also known as Abel Tesfaye, has become the most popular artist in the world. That's according to Guinness World Records, which dubbed him the King of Streams. The announcement came as the artist broke two World Records based on Spotify data. Abel had the most monthly listeners on Spotify with 111.4 million users, while also being the first artist to have 100 million monthly listeners on the platform. [MUSIC PLAYING]