Blue bubbles versus green bubbles. In texting it's the difference between iPhone owners and Android phone users. Green bubble people can be made to feel like unwelcome party crashers.
Former Israeli hostage Luis Har speaks to NPR about how he endured 129 days of captivity in Gaza. He was freed in February by an Israeli special forces raid.
The Biden administration is announcing guidelines for how federal agencies can and can't use AI, and ways the government will be transparent in using it — but there are still lingering questions.