Not Laughing

Pat Fagan has an excellent piece on the deleterious effects of p0rnography.
Most men, including doctors, have not the foggiest notion that the wives develop deep psychological wounds, commonly reporting feelings of betrayal, loss, mistrust, devastation, and anger at the discovery of their husbands’ use of pornography, especially Internet use.
Many wives also begin to feel unattractive or sexually inadequate, and many become depressed, even severely depressed, so badly that they need treatment for trauma, not just for depression. Many pornography-viewing husbands lose their emotional capacity for marital relations, and this, in turn, causes both husbands wives to be less interested in the marriage bed. (Viagra sales are soaring while Internet viewing of pornography continues to rise steadily). Not only is there a loss in sexual intercourse, but even distaste for the affection of a spouse and a cynicism about love can replace the affection that used to be present between them.
He has far more, and asks where the National Institutes of Mental Health are. His piece reminded me of something I intended to post on earlier in the week: this WSJ piece on the yet-unsolved anthrax attacks. Bruce Ivins, the suspect who later committed suicide, does not appear to have been the actual culprit, but know why the FBI readily believed him capable of anything? His p0rn use. 
A search of his email turned up pornography and bizarre emails which, though unrelated to anthrax, suggested that he was a deeply disturbed individual.
Since p0rn use is still a reliable predictor of other malfeasance to experts on the criminal mind, why do we accept ready reference to its use in all of our sitcoms as if everyone did it and it were no big deal?