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.An all-star panel joins Fareed to examine Russia's ongoing military buildup on the Ukrainian border and whether the diplomatic efforts to avert war still stand a chance.  Then, Imran Khan, the Prime Minister of Pakistan, on the crisis in Afghanistan and China's treatment of Muslims.