CBS Evening News Season 78 Episode 58 Mar 20, 2026

James Longman has the latest on the war in Iran as the U.S. deploys an additional 2,200 Marines to the Middle East while the Trump administration weighs options on how to reopen the Strait of Hormuz; Aaron Katersky reports on law enforcement officials warning of "a significant threat to public safety and national security" after swarms of high-tech drones entered the airspace over a U.S. base housing B-52 bombers and the Air Force's nuclear command; Steve Osunsami looks back at the life and legacy of actor and martial arts master Chuck Norris, who has died at age 86; and more on tonight's broadcast of World News Tonight with David Muir.