A first message attributed to the new Iranian Supreme Leader has been released. Investigators probe for the motive in the Michigan Synagogue attack. Students stop a gunman who opened fire at Old Dominion University. NASA sets April 1 as the launch date for the historic Artemis mission.  Plus, an AI tool is being developed to help people talk with their plants.Learn more about your ad choices. Visit podcastchoices.com/adchoices