Mothers who lost their daughters at Camp Mystic in the catastrophic 2025 Texas floods sit down with Lester Holt to discuss their grief, their bond, and the investigation into what happened. Originally aired on June 26, 2026.Lester Holt and NBC News National Correspondent Morgan Chesky go behind the scenes of the making of this episode in ‘Talking Dateline’: https://swap.fm/l/talkingdatelineaftertheflood