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.This week: The week in global politics; Congress passes a Russia-Iran-North Korea sanctions bill and the E.U. pushes back; President Trump's White House staff; President Trump's sudden change in transgender policy for the U.S. military.