Regulatory bodies such as the Federal Communications Commission and the Federal Trade Commission seem nearly powerless when up against the online advertising juggernaut.

Francis never made the purported comments and has not changed or added to the Ten Commandments.

The problem of “fake news” is dizzying for journalists and media consumers alike.

With his 5,800-word manifesto on “Building Global Community,” the Facebook C.E.O. seems to be easing ever more into his role as benevolent dictator of the media universe.

We have to find ways of speaking to those outside our community of agreement not just through new media but in new ways.