In the year since an Associated Press investigation found that California had lost track of more than 33,000 sex offenders, the state has made only minor improvements in the way it maintains its Megan's Law database.
http://www.cnn.com/2004/LAW/02/06/megans.law.missing.ap/index.html
http://www.cnn.com/2004/LAW/02/06/megans.law.missing.ap/index.html