From the article: “It’s about what sort of people we aspire to be: how we define our ideals, how we draw the lines in our relationships, and how we feel about ourselves if we cross them. And it’s about providing a way for everyone involved, men and women alike—whether they’re using porn or merely tolerating it—to think about what, precisely, they’re involving themselves in, and whether they should reconsider…”

Read more:

http://www.theatlantic.com/magazine/print/2008/10/is-pornography-adultery/306989/