Los Angeles County launches an investigation after a sanitation tunnel collapse traps 31 workers underground. Governor Gavin Newsom tours South Carolina, drawing both praise and criticism over his national ambitions. Meanwhile, Hollywood’s soundstage operators hope new state tax credits will revive production after a historic slowdown. Plus, a watchdog warns of a 400% surge in AI-generated child abuse imagery, calling for urgent regulation. Stay tuned for these stories and more from the LA Times newsroom.