In our news wrap Tuesday, U.S. public health leaders urged businesses and governments to impose vaccination mandates. The Paralympics opened in Tokyo despite Japan's worst COVID surge yet. The death toll in Tennessee's flood disaster was revised down to 18, with three people still listed as missing. New fighting has broken out between Israel and Hamas -- the worst since their 11-day war in May. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders