Hmmm, lets see, this is a great thread, Mike, thanks for starting it, now if we can just get more traffic here!
My overall response to Megans law is that I really don't like it. It implies that a convicted sex offender can never rehabilitate. It also becomes a de facto life sentence for someone that may have made one dreadful mistake in college or something like that, so just like all broad-based policies(like those in elementary schools), it is mostly just ignorant pandering to scaredy cats in a society that constantly begs the government to protect us from the Big Bad Wolf.
That said, the answer to your specifics.....
Question one, This should be left to Municipalities. Perhaps the state could encourage the municipal governments to make a law, if they wish, but no the state need not make one. There are already too many things in the hands of the State that local government should handle( and for that mattter way too many things in the hands of the Federal Government that the States should handle!)
Q2: Absolutley not! As I said above this makes it seem that there is no hope for rehabilitation. If a child is convicted of Manslaughter as a Juvi, they are not punished for life! Why sex crimes?
Case in point- A 15 yo boy and a 15 yo girl are consentually fooling around. It gets heavy, the girl say yes, they start, and suddenly she says, "no Stop." If the 15 yo, a child, whose hormones are dominating his under-developed brain, does not stop, get up get dressed and run, he is guilty of sexual assault according to PA law.
No, child hood mistakes should not carry a life sentence of humiliation and suspicion(or a 10 year one).
And since Megan's law is dumb-ass zero tolerance, "we don't think we just act", crap that is EXACTLY what would happen.
Q3: Why are Sexxually Violent Predators treated differently than Violent Predators? Why are the Gang members in Harrisburg that shoot up Allison Hill( predators to be sure) able to roam free after serving 5 years for shooting someone and terrorizing entire neighborhoods?
Megans Law is just nonsense, period. I never understood how it made it past the Supreme Court, other than Political crap.
You want your kids safe from sexual predators? Keep an eye on them, and get to know the people around you. Take responsibility for your family, instead of asking the government to do it for you!