Much has been in the news lately on the six anti-circumvention exemptions the U.S. Copyright Office enacted into law this week regarding the Digital Millennium Copyright Act. The three “most popular” exemptions include the unlocking of phones with regard to wireless carriers, security and vulnerability research with regard to DRM’d CDs, DVDs, etc., and the archiving of obsolete computer programs and video games that may be protected by DRM. If you’re interested in how these six exemptions came into being and all of the policy mucky-muck that goes into the Copyright Office’s decision making, I encourage you to read the detailed “Decision of the Librarian of Congress,” which can be found here. It should be noted that 74 total exemptions were proposed before the Office, and a number of the more credible proposals are discussed in the above linked report, including matters of space-shifting and DVD region encoding.