This week on Matter of Fact, a rare interview with federal district court judge. Judge Robert Brack handles criminal immigration cases, saying he has presided over a process that destroys families. He tells Correspondent Jessica Gomez that he wants to help fix the damage by reuniting families separated at the border. Plus, how do you call out lawmakers when they lie? Soledad O’Brien talks with Brown University Political Science Professor Corey Brettschneider about the media’s failures to fact check. Then, how responsible is social media for the deadly riots at the U.S. Capitol? Soledad O’Brien talks with Fordham University Law Professor Olivier Sylvain about balancing First Amendment rights and big tech’s influence over what appears online. And, a look at vaccination efforts in the viewfinder.