CRS Reports: (Do search for sex offenders)
10-19-2015: Further Pre-Enactment Sex Offender Registration Uncertainty Resolved
3-25-2015: Federal Involvement in Sex Offender Registration and Notification: Overview and Issues for Congress, In Brief
7-25-2013: Failure to Register as a Sex Offender: A Legal Analysis of 18 U.S.C. 2250
2-21-2008: The Social Security Number: Legal Developments Affecting Its Collection, Disclosure, and Confidentiality
See also other CRS Reports in this blog.