A major operation is underway off the coast of Newfoundland and Labrador to find an OceanGate Expeditions submersible. The watercraft vanished while taking tourists to visit the Titanic wreckage site. The desperate search; and an interview with CBS News correspondent David Pogue, who rode an OceanGate Expeditions vessel in 2022, about what could have gone wrong with the watercraft, and what his experience was. People in the tight-knit community of Dauphin, Manitoba are trying to come to grips with the horrific crash on the Trans-Canada Highway, which killed 15 people and injured 10 others. The support the community is receiving. Germany decommissioned them years ago, but its Gepard anti-aircraft tanks are now back in action in Ukraine. Crystal Goomansingh was granted special access to the vehicles that soldiers are using to take down Russian missiles and drones. U.S. Secretary of State Antony Blinken has had a rare face-to-face meeting with Chinese President Xi Jinping, as the pair pledges to improve the tense relationship between both countries. What progress has been made.