Porn Crazy

Reading this article called, and I kid you not, Is Pornography Driving Men Crazy?
What strikes me as bogus is that none of the studies cited compare men who watch porn versus men who don't. I can think of a lot of young men in my own circle of friends who would probably die of sheer embarrassment before watching something like that.
One of the things that I wonder if it is true is the claim that men are having more trouble with impotence and premature ejaculation because of porn. All those idealized images of men in porn would probably make any man feel less than, and I'm wondering if it's similar to the way models in fashion magazines encourage women to starve themselves in order to have the perfect body.
I also think it is really disturbing that hardcore porn is used to desensitize doctors and soldiers. There's something really awful about that, about the statement it makes on the kinds of people we're training.
Part of me really wants to poll my guy friends about this subject, though I think with friends like Jimmy and Nate, I'm not going to get very far.