Dec. 27, 2017: 2017 was a landmark year for activism in sports. Jelani Cobb, staff writer for The New Yorker, breaks down some of the year's key moments in athletic protest. Plus, an overburdened IRS prepares to tackle the new Republican tax bill; alleged abuse by ICE against more than 100 Somali immigrants; and what The Guardian found in an investigation on homeless relocation programs in the U.S.