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.CNN correspondents in Moscow and Kyiv give Fareed the latest developments on the ground. Then, top former foreign policy officials lay out the diplomatic options that remain to try to stave off a Russian invasion of Ukraine. Plus, Fareed sits down with former Secretary of State Condoleezza Rice to discuss the evolution of Vladimir Putin and the history behind his interest in Ukraine. Guests: Clarissa Ward, Nic Robertson, Radoslaw Sikorski, Thomas Graham, and Condoleezza Rice.