In a prescient book published a quarter century ago, when few people had heard of the internet, Carolyn Marvin, a professor of communications at the University of Pennsylvania's Annenberg School for Communication, catalogued the fear and loathing with which newspapers greeted the advent of the telegraph and the telephone. High on the list of perceived horrors was the inevitable moral degradation of women. Old media are still at it, constantly warning us to be very afraid of the perils lurking in the internet, computers, smart phones, cell phones, etc. The magazine Pacific Standard gamely took note of this handwringing today with an article...