Nobel Prize-winning economists Abhijit Banerjee and Esther Duflo discuss vaccine inequality and how developed nations failed poorer countries early in the pandemic. Matt Hancock, British Health Secretary, talks about the summit today at the G7 in Oxford and the concern in the U.K. over the new variant. Major General Sami Sadat, Commanding General of the Afghan Army 215 Maiwand Corps, discuss the U.S withdrawal from Afghanistan and a new UN report warning the Taliban poses a severe threat to the Afghan government. Michel Martin talks with award-winning author Kiese Laymon about revising two of his books eight years after they were originally published. To learn more about how CNN protects listener privacy, visit cnn.com/privacy