Pedophiles: Not In My Backyard

I'm truly conflicted about this one. In Miami Beach, they've passed an ordinance that bars convicted pedophiles from living within 2,500 feet of schools, school bus stops, day care centers, parks or playgrounds. Because of the size of Miami Beach (just over 7 square miles) and the fact that it has 21 parks and 6 public schools, the ordinance effectively bans pedophiles from living in the city at all. A township in New Jersey and another city in Florida have quickly followed suit and some 40 other local governments have called to get more info on the ban.

Well, I sure as hell wouldn't want a convicted pedophile moving in next door to my kids. (Who would?) But, really, can every city and town in the country simply ban pedophiles? Should we just dump them into some commune far away from everyone else? Would anyone care? And why stop there? Why not ban all murders or all felons? Can we just legislate away crime and fear?