Apple guru Adam Engst has written in TidBITS about 'the evil that is the DMCA'. It constitutes a pretty comprehensive attack on the DMCA and trusted computing systems. An extract - "Much has been written about what's wrong with the Digital Millennium Copyright Act (DMCA). After all, it's been used to jail
programmers, threaten professors, and censor publications, and because of it, foreign scientists have avoided traveling to the
U.S. and prominent researchers have withheld their work"