In recent years, there has been widespread concern that democracy is threatened by the spread of misinformation and "fake news" on social media and other similar new technologies. Rick Hasen's recent book Cheap Speech: How Disinformation Poisons Our Politics-and How to Cure It, is an important addition to the literature making this case. Hasen and others argue that the problem can be mitigated by public and private actions to restrict the spread of misinformation on social media (though Hasen advocates more modest regulatory measures than some other commentators).
