Sunday on PBS News Weekend, five years after the murder of George Floyd, his family’s fight for racial justice and police reform goes on. The environmental impact of data centers at the heart of the AI industry. Tensions in the South China Sea mount as Chinese and Philippine vessels clash in disputed waters. Plus, an endurance swimmer tries to change perceptions about sharks 50 years after “Jaws.” PBS News is supported by - https://www.pbs.org/newshour/about/funders