<a href="https://en.wikipedia.org/wiki/National_Security_Letter" class="extiw" title="w:National Security Letter">National Security Letter</a> issued to the <a href="https://en.wikipedia.org/wiki/Internet_Archive" class="extiw" title="w:Internet Archive">Internet Archive</a> in November 2007.
<a href="//commons.wikimedia.org/wiki/Federal_Bureau_of_Investigation" title="Federal Bureau of Investigation">Federal Bureau of Investigation</a>
2007-11
<a rel="nofollow" class="external free" href="https://www.eff.org/files/filenode/ia_v_mukasey/Nov2007_NSL.pdf">https://www.eff.org/files/filenode/ia_v_mukasey/Nov2007_NSL.pdf</a>