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.Facebook's co-founder, Chris Hughes, tells Fareed it's time to check the company's unprecedented power. The U.S. is tightening it's grip on Iran--Richard Haass, William Burns and Paula Dobriansky discuss the line between diplomacy and coercion. And, the next financial crisis--when will it hit?