Journalist and author Fareed Zakaria hosts this in-depth look at the major global developments of the week (the title's "GPS" stands for "Global Public Square"), with an emphasis on new ideas and innovative solutions to the World's toughest problems. Each episode also features Zakaria leading a panel discussion and interviewing a major world figure.U.S. Treasury Secretary Janet Yellen sits down with Fareed for an exclusive interview this week to talk about inflation, sanctions on Russia, and whether the dollar will continue to be the dominant world currency. Then Fareed hosts a panel with New York Times correspondent David Sanger and retired US Army Lieutenant General Mark Hertling to talk about the Pentagon document leak: how it will affect relations with allies and what it may reveal about the war in Ukraine. And Nick Paton Walsh, CNN's Chief International Security Correspondent, tells Fareed about his work documenting the treacherous migrant route along the Darién Gap.