On this day in 1972, Led Zeppelin's “Black Dog” made its debut on the U.S. singles chart. Mock Paper Scissors: TL;DR: Summary of the Jan 6 Report. No More Mister Nice Blog: Trump Won After January 6 Because Much of the Country Thinks the Government Is Brian Thompson. Progress Pond: The Republicans Are Waddling Into the Threshing Blades. Attention space nerds!