Sunday on PBS News Weekend, the latest from the Middle East as Israel readies its forces to launch a ground offensive to eliminate Hamas. Then, part two of our interview with Defense Secretary Lloyd Austin, discussing U.S. support for Ukraine. Plus, a little-known tactic used by the food and beverage industry to influence what we eat and drink, and the story of a groundbreaking graffiti artist. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders