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.Clarissa Ward, CNN's Chief International Correspondent, gives Fareed the latest reports from Kyiv. Then, Gennadiy Druzenko, a Ukrainian constitutional scholar turned wartime volunteer, tells Fareed what Ukrainians need on the frontlines. Plus, New York Times Moscow Bureau Chief Anton Troianovski explains how Russians feel about the war. And, Paul Krugman tells Fareed just how damaged Russia's economy has been by sanctions…and answers the big question: whether China can or will come to Russia's rescue.