Every now and then I’m reminded of just how clever Satan can be, especially during Lent.Consider, for example, a pernicious little sin that seems to have taken root and grown in the age of social media: detraction. I’ve been seeing it more and more. Nobody really talks about it or the harm it inflicts — though the pope has stressed, often, the inherent evil of its close cousin,  gossip. (The pontiff has even compared gossip to terrorism.)So what’s the big deal? Let me count the ways.First, the catechism teaches that detraction is a sin against the eighth commandment: 2477 Respect for the reputation of persons forbids every attitude and...