Polar Vortex Has Midwest Temperatures Plunging to Near Record Lows Cold snaps like this were more common in generations past, but climate change is making these events rarer. What Does it Mean to Assimilate in a Nation of Immigrants? "Hispanics should work harder at assimilation," said former NBC News anchor Tom Brokaw. But assimilate to what, exactly? Not a Telenovela: Recapping Outrageous Revelations from El Chapo's Trial As the trial draws to a close, we recap various anecdotes from the trial. Guests: Eric Holthaus Elizabeth Shockman Mariah Woelfel Mary C. Waters Daniel José Older Keegan Hamilton