Only 7 years? Something wrong with that isn't there?

In my city we have Dudley Dorights who have programs to take in these men upon release from jail. Right now a paedophile with a forty year history of convictions for abusing kids, stalking, indecent exposure. The list is endless. He was released with strict conditions.....for a year he will be not be allowed out in public without someone in attendance. The city is in an uproar and petitions are being gathered to have him removed from here and of course it will prove a pointless excersise. So he will be babysat for a year and then be given privilges to go out and about to re-offend once more, for after a year has passed most people will forget he is here......but other than lynching what is the solution? One of my kid's teachers, a children's lawyer for our local Child Protection Agency, a scout leader, and a cop in town here all are offenders......many many more too I assume, but what can be done when the offender can be anyone's family member.
We must do more to educate our kids and parents for so many think it can't happen to them and it most definately can for I take kids in my home who are victims of this and I see the long term damage that has been inflicted upon them. I say....lock them up and throw away the key until they are "cured". That will be forever for there is no cure and these monsters think they are doing what comes natural.