
See... when you argue "Not in my backyard," you actually can end up making the problem worse. Read stories of people who were imprisoned who were actually not guilty. You will see a long, sad history of men, mostly, who have no lives, no social skills, drug problem, and no employability. And they end up living on the bottom rung of society, or worse, actually committing a crime, and going back to jail. And those are the innocent who were in jail. Now, in that same environment, put a 15, 20, 25 year old male who did commit a crime, be it drug possession, assault, theft, rape, manslaughter, etc. Do you think someone who had issues beforehand is going to come out of the brutal existence that is prison with a better or worse disposition?
So, do you just assume then that once you commit, you need to be locked up forever? There is a reason recidivism is such a problem with people who have been in jail. The main reason is they are let out from a place where they were punished instead of rehabilitated. So, they leave prison best case in the same mental and emotional state they went in. The only thing added to that would be a strong desire to never go back, OR even worse mental pathology that will increase recidivism.
Sexual assault becomes a thorny issue, because the reasons are very often non-sexual in nature, and may mask or exaggerate issues underlying. And as someone pointed out above, regardless of what the media portrays, the typical child abductor/molester/killer is going to be related, or a family friend. Just like if you ask the average moron on the street if a plane or car is safer, they might actually say car... even though you are far less likely to be injured or killed while flying the plane. The most dangerous part of the whole trip is getting to and from the airport. But, the plane crash that kills 100 people is much more highly publicized, but the thousands of highway fatalities each year you never hear about, unless it's a handful at a time. It's sick, and it greatly distorts the world view.
And the last issue regarding "reporting" laws, like Megan's law, is that you have a list which includes people who may actually not have committed a crime most people would actually consider predation. Like the kid in GA, I believe, who was jailed for having consensual oral sex with a 15 year old while he was 17. He was put on the sex offender registry for that, in addition to being jailed for a few years. Apparently, if he had just had sex with her, it would have only been a misdemeanor instead of felony. A dick in the mouth is a lot worse than a dick in the bush I guess. So his life was ruined. All for the sake of overzealous people who feel that if you commit one crime in your life, you're worth less than the dirt we walk on. And someone who didn't bother to come to terms with his crime might just go out and kill him, not realizing he was a minor when he was with a minor.... just because they freaked out and had an attack of NIMBY....