Former US Army Captain Matt Zeller owes his life to an Afghan interpreter and resents what he sees as the Biden administration's decision to let the Taliban dictate the terms of the withdrawal. He asks Americans to think about all the Afghans who got left behind despite risking their own lives to help US forces. "Put yourself in their shoes," urges Zeller, who has a sobering message for America after leaving Afghanistan: "We're now going to carry a moral injury that will never abate. A scar that will never disappear." Watch his visceral testimonial on this episode of GZERO World with Ian Bremmer.