Even President Obama was taken aback by the speed at which this tipping point tipped. Sign Up Receive occasional updates and special offers for The New York Times's products and services. View all New York Times newsletters. It’s a huge legal, moral and strategic problem, and it will require, said Cohen, “a new social compact” to defuse. Students, for example, had a hard time distinguishing advertisements from news articles or identifying where information came from.

Source: New York Times January 11, 2017 08:22 UTC