Journalist and author Fareed Zakaria hosts this in-depth look at the significant 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 most challenging problems. Each episode also features Zakaria leading a panel discussion and interviewing a prominent world figure.Looking ahead at 2022, Fareed asks Dr. Robert Wachter of UCSF how the Covid-19 pandemic will evolve in its third year. Then, will Russia invade Ukraine? Ian Bremmer, president of the Eurasia Group, and Niall Ferguson, senior fellow at Stanford's Hoover Institute, weigh in. Plus, what China and the economy have in store for the new year. Other guests are Elizabeth Economy and Ruchir Sharma. Elizabeth Economy, a senior fellow at Hoover Institution, weighs in on China. Ruchir Sharma, a global investor and Contributing Editor at the Financial Times, discusses the economy.