ABC World News Tonight with David Muir Full Broadcast - March 17, 2026

Rachel Scott reports on the Trump administration's top counterterrorism official Joe Kent’s resignation in protest of Pres. Trump's war with Iran as the president criticizes NATO allies for refusing to help reopen the critical Strait of Hormuz; Rhiannon Ally has details on the sonic "boom" heard from Ohio to Kentucky after a meteor traveling 45,000 mph exploded upon entering Earth's atmosphere, shaking the ground and registering on a seismograph; Trevor Ault has the latest on the case of Kouri Richins, who was found guilty of poisoning her husband and then writing a children’s book about coping with grief; and more on tonight’s broadcast of World News Tonight with David Muir. 00:00 Intro 02:18 Top counterterrorism official Joe Kent resigns over war: "Iran posed no imminent threat" 05:21 U.S. Embassy in Baghdad under attack, after Israel kills Iran's de facto leader 07:51 NASA: Massive "boom" heard from Ohio to Kentucky caused by exploding meteor 09:48 Winter storm snarls travel as strong winds lash Eastern U.S. 11:47 Firefighters battle Manhattan rooftop fire near St. Patrick's Day parade 13:00 Gunman reportedly killed by police after storming Georgia VA clinic, shooting worker 13:21 Utah mom Kouri Richins' guilty verdict brings relief to husband's family 14:48 Disturbing allegations made against civil rights icon Cesar Chavez 15:43 Amtrak train collides with 18-wheeler outside of Houston 15:59 Alabama basketball star Aden Holloway arrested days before NCAA tournament 16:30 Former Syracuse quarterback Rex Culpepper dead at 28 16:51 Remembering longtime co-host of “Showtime at the Apollo” Kiki Shepard, who died at 74 17:12 Identity of famed graffiti artist Banksy revealed? 17:57 America Strong: Alaska police sergeant makes final radio call to daughters after 27 years of service ABC World News Tonight with David Muir delivers the news that matters most. Watch to get the latest news stories and headlines from around the world. Follow ABC World News Tonight on... Instagram: https://www.instagram.com/abcworldnewstonight/ TikTok: https://www.tiktok.com/@abcworldnews X (formerly Twitter): https://twitter.com/ABCWorldNews Facebook: https://www.facebook.com/WorldNewsTonight Threads: https://www.threads.net/@abcworldnewstonight ABC News is your trusted source for breaking news, analysis, exclusive interviews, headlines, and videos: https://abcnews.go.com/ Subscribe to ABC News on YouTube: https://bit.ly/2vZb6yP Watch full episodes on Hulu: http://abcn.ws/3bzvQQn #WorldNewsTonight #DavidMuir #News #ABCNews