Monday on the NewsHour, Israel kills militant group leaders in Lebanon and Syria as the U.S. tries to stave off a broader conflict in the Middle East. Why the White House and the public weren't told about Defense Secretary Austin's hospitalization. Plus, hundreds of flights are canceled after the Alaska Airlines blowout prompted federal authorities to ground the Boeing 737 Max 9 aircraft. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders