An important theme in recent comparative penology has concerned the apparent convergence of penal policy between 'neo-liberal' Anglophone jurisdictions exemplified by the adoption of a punitive and politicized approach to crime and punishment. At the same time, important divergences from this pattern have been noted in other national contexts, not least in a number of Western European countries. This article returns to these debates in light of the history of the passage of federal and state legislation in the area of sex offender community notification in the United States (Megan's Law) together with campaigns to enact similar legislation in the UK (Sarah's Law). We compare the process of policy change on both sides of the Atlantic and ana...