Hollywood wants ISPs such as AT&T and Verizon to help in its fight against piracy. But unlike AT&T, which is talking about developing a system that would identify and block illicitly copied material being sent over its network, Verizon has no intention of implementing filters at Hollywood's request and the company has three good reasons to back its decision.
First of all, it opens the door for other organizations to make demands as to what should and shouldn't be allowed. Second, such actions would set a precedent and ISPs might be held responsible for future cases where they fail to block content. And lastly, Verizon considers that content filtering is basically an invasion of privacy and therefore not a practice to be used. All in all, it sounds like at least Verizon knows that providing clean, unrestricted bandwidth makes good business sense.