National What can be done to prevent a submersible tragedy from happening again? 7:23am June 23, 2023 Share URL copied to clipboard! Copyright 2023 NPR. To see more, visit https://www.npr.org. 300x250 Ad More Morning Edition World News Evan Gershkovich, Paul Whelan among Americans freed from Russian custody in prisoner swap World News Morning news brief 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate