No limits for DRM?

Thanks once again to the Register for reports of debate in the US Copyright Office as to the introduction of exemptions to the DMCA in respect of DRM systems, particularly to deal with extreme (including lifetheatening) situations. I haven't seem full details of the right holders (or supporters) arguments, but the possibility that IP ( in the broadest sense - as clearly a question is that DRM/access control systems can also limit access to non copyright work) could be used to prevent effective dealings with emergency cries out for a practical, effective means of introducing human rights values into this debate.