Downloading Justice Once again, the unintended consequences of the Internet may be heading for a big showdown before the Supreme Court.  This time, it's the war over file sharing and copyrights that the justices are being asked to review. &lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2" color="#666666"&gt;&lt;B&gt;-washingtonpost.com&lt;/B&gt;&lt;/FONT&gt;