(New York City) Foreign-born New Yorkers from 19 countries were arrested yesterday through a combined state/federal sweep of convicted child sex offenders. Twenty of those arrested are illegally in the United States, ostensibly committing child sex offenses that regular Americans won't do. They may be deported immediately. Others arrested are also subject to deportation if they are not American citizens.

The roundup came as a result of a policy change where New York and federal authorities exchange information. The sharing of information between autonomous agencies is a shocking and monumental innovation in law enforcement which produces substantive results. It's too bad that someone didn't think of it sooner.