Wired <a href="http://blog.wired.com/27bstroke6/2008/03/fbi-tried-to-co.html"> reports</a> that the FBI issued back dated blanket subpoenas to telcos to cover their acquisition of telco records.
While I find the Patriot Act necessary, I also find its abuse repugnant.
The DOJ's IG found:<blockquote>Top officials at the FBI's counter-terrorism division signed the blanket subpoenas "retroactively to justify the FBI's acquisition of data through the exigent letters or or other informal requests."</blockquote>
Either do it as laws and regulations allow or don't do it at all.