President Barack Obama announces executive orders to reform immigration. His plan allows millions of unauthorized immigrants to, as he put it, “come out of the shadows.” But Republican leaders promise a fight. The Senate blocks the Keystone XL pipeline and votes down a bill to restrict N.S.A. phone record collection. Tensions rise in Ferguson as the community awaits a grand jury decision. Takata faces a grilling from senators over its deadly airbags. Montana and South Carolina legalize gay marriage. And Bill Cosby loses deals with NBC and Netflix following more sexual assault allegations. A panel of journalists joins Diane for analysis of the week’s top national news stories.