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.In Fareed's exclusive interview with two former Secretaries of State, Madeleine Albright and Colin Powell offer their thoughts on the impeachment inquiry and Washington's whistleblower. And, Anne Applebaum tells Fareed about the latest developments in Ukraine's side of the whistleblower story. Also, Singapore's Prime Minister Lee Hsien Loong comments on being caught in the middle of the US-China trade war. Guests: Madeleine Albright, Gen. Colin Powell, Anne Applebaum, and Prime Minister Lee Hsien Loong.