From Megan’s Law to Jessica’s Law, almost every state in the nation has passed some law to punish sex offenders. This popular tough-on-crime legislation is often written after highly-publicized cases have made the gruesome rounds through the media, and usually features harsh sentences, lifetime GPS monitoring, a dramatic expansion of the civil commitment procedures, and severe restrictions on where released sex offenders may live. In Sex Fiends, Perverts, and Pedophiles , Chrysanthi Leon argues...