The Washington Post’s Paul Duggan has a story up detailing new improvements to the Metropolitan Police Department’s Sex Offender Registry. The main addition is a new map that allows users find registered sex offenders within either a .25 or .50 mile radius of any address in the city. Previously, users could only search by PSA, or police service area. The map can be found at sexoffender.dc.gov. In a brief test run, the searching function…