The Department of Transportation is launching an investigation into whether airlines regularly devalue customer’s airline points, making it harder to use them for reward travel. Transportation Secretary Pete Buttigieg says it wants to protect fliers from "unfair or deceptive practices." NBC’s Tom Costello reports for TODAY. » 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: instagram.com/todayshow » Stream TODAY All Day: https://...