Just in case they missed this one, I pass it on as a service to Sean Hannity, Rush Limbaugh, Karl Rove, and the rest of the gang. From the New York Times:
A second misconception is that pedophilia is a choice. Recent research, while often limited to sex offenders — because of the stigma of pedophilia — suggests that the disorder may have neurological origins. Pedophilia could result from a failure in the brain to identify which environmental stimuli should provoke a sexual response. M.R.I.s of sex offenders with pedophilia show fewer of the neural pathways known as white matter in their brains. Men with pedophilia are three times more likely to be left-handed or ambidextrous, a finding that strongly suggests a neurological cause. Some findings also suggest that disturbances in neurodevelopment in utero or early childhood increase the risk of pedophilia. Studies have also shown that men with pedophilia have, on average, lower scores on tests of visual-spatial ability and verbal memory.