Fort TV [TV show e-mail transmission prevention]

Today you're free to mail a friend a videotape of a TV show, but new digital defenses may stop you from e-mailing them. This article discusses the reasons why theses defenses are needed and some of the encryption technology involved. No solution has been proposed and vetted that affords digital content robust protection from broad public redistribution while still permitting "e-mailing to grandma" and the direct digital home copying beloved by the consumer.