Zuckerberg testifies in teen harm trial

Bloomberg’s Ed Ludlow discusses OpenAI nearing the first phase of a new funding round that could bring in more than $100 billion. Plus, Mark Zuckerberg testified in a landmark social media trial, telling a jury it is "very difficult" to enforce Instagram's age limits. And the DOJ is taking a closer look at how theater chains could be impacted by a sale of Warner Bros. Discovery.

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