The Czech Republic offers surgical castration
as a "voluntary" option to sex offenders, whose rate of recidivism in some studies then drops precipitously. Officials at the Council of Europe
, calling the punishment "invasive, irreversible and mutilating." Atul Gawande noted 10 years ago
that, despite his reservations, castration works - at least against a subclass of offenders: the pedophiles and sadists.