Disinformation isn't new. But in the last decade, the growth of social media has made it easier than ever to spread. That coincided with the political rise of Donald Trump, who rose to power on a wave of disinformation and exited the White House in similar fashion. NPR's Tovia Smith reports on the growing threat of disinformation — and how expert deprogrammers work with people who believe it.Other reporting on disinformation in this episode comes from NPR correspondents Joel Rose and Sarah McCammon. In participating regions, you'll also hear a local news segment that will help you make sense of what's going on in your community.Email us at considerthis@npr.org.