We cannot split power and responsibility. ISPs will have to have both or neither. Certainly it is unfair to make ISPs responsible for what they are carrying yet give them no power to control it; it exposes them to lawsuits which they cannot defend against, lawsuit we will all pay for. As for power without responsibility, that is just plain odious, but in addition to that there is also the Digital Millenium Copyright Act, which sets up 'safe harbors' for service providers (of all kinds of digital services, not just ISPs) that do not filter based content or exert any other control. ISPs will lose that protection if they exert control. What constitutes "exerting control" and what doesn't hasn't been well defined yet, as to the best of my knowledge no case on this issue has ever gone to court.