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.The growing tensions between the US and Iran - will they lead to hostilities? Then, the trade war between the US and China; is it the start of a new Cold War between the two powerful nations? Guests: Jim Sciutto, Robin Wright, Rana Foroohar, Kevin Rudd, Michael Pillsbury, Adam Gopnik.