Reporting for TODAY, NBC's Kate Snow spotlights the remarkable life-saving surgery that saved three young girls after doctors at Duke University performed a unique new surgery they call a "domino transplant," that allows them to save multiple lives. "One person gets a new heart, and then the heart that comes out has good valves in it so that we can split that heart into multiple recipients. » Subscribe to TODAY: youtube.com/@TODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: today.com Find TODAY on Facebook: facebook.com/today Follow TODAY on Twitter: twitter.com/TODAYshow Follow TODAY on Instagram: ht...