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Governor Gavin Newsom signed a series of bills that hope to make social media and AI safer for children.

The Kaiser strike is set to last five days. It involves nurses, pharmacists, anesthetists, midwives, physician assistants, rehab therapists and others.

The Jet Propulsion Laboratory, part of NASA, laid off 550 employees, or about 11% of its staff.

Local fire crews are launching a sweeping effort to prevent future wildfires in the Santa Monica Mountains. It entails using both animals and machines to create fire breaks -- a controversial solution in Southern California.

Pro Cast Industries and Fenico, two metal foundries in Paramount, were cited for releasing excessive amounts of hexavalent chromium, a carcinogen, into the air.

Kratom is derived from the leaves of a tree native to Southeast Asia, and is commonly made into a powder or pill. It has been linked to several recent deaths in L.A. County.

With AIDS Walk L.A. days away, Phill Wilson reflects on decades of HIV/AIDS research and prevention and looks ahead as those victories come under attack.

Californian John Martinis won a Nobel Prize for physics work he did decades ago. Today, he's on a quest to create the fastest quantum computers in existence.

Federal officials plan to round up wild horses roaming the Eastern Sierra, citing hazards and damage. But local tribes and others seek a different outcome.

The CDC's changes have been criticized by mainstream medical groups.