What danger does widespread misinformation pose to democracy? Conspiracy-addled insurrectionists who stormed the Capitol last week gave us the short answer: a big one.
Social media companies like Twitter and Facebook seem to have come to this conclusion, banning President Donald Trump and scores of his supporters from their platforms for inciting violence. How big will this challenge remain going forward? And what should be done about the pervasive and polarizing presence of conspiracy theories in American society?