U.S. air travel is being strained on all sides—travel demand is back to 2019 levels, but the number of pilots and planes and ground crew hasn’t caught back up, and a rash of close calls are raising safety concerns about America’s aging flying infrastructure.Guest: Jon Ostrower, editor in chief of The Air Current.Host: Lizzie O’LearyIf you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next TBD. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices