Do you have creative works you have made, and would like to maintain control over?
It seems there is a bill before congress to make it so that if someone happens across a work of yours and would like to use it, and they have tried to concact you and failed (how hard do they have to try? stand on the street corner and yell your name?) they can use your works.
http://theonlinephotographer.blogspot.com/2006/02/emergency-for-professional-and.html
http://www.asmp.org/news/spec2006/orphan_faxcall.php
Seems kind of sketchy to me.