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.Former U.S. Energy Secretary, Ernest Moniz, tells Fareed about the fate of the nuclear deal amid rising tensions between Iran and the West. And, Washington's special relationship with Westminster, how will it survive the current strain? The U.K.'s former Foreign Secretary tells Fareed what's next for the two nations. Guests: Ernest Moniz, David Miliband, Tom Friedman, Menaka Guruswamy, and Arundhati Katju.