If SOPA passes, copyright holders would be able to complain to law enforcement officials and get websites shut down. Search engines and other providers would have to block rogue sites when ordered to do so by a judge. Sites could be punished for hosting pirated content -- and Internet companies are worried they could be held liable for users' actions.

I placed the emphasis around the offending line. This wordplay makes SOPA sound more palatable. Under DMCA, copyright holders already have the right to demand that websites take down offending material. Under SOPA, a judge can order the search engine itself to be shutdown. Search engines, news aggregation sites, and online community providers must be proactive in removing links before a judge is even involved. Under SOPA, the definition of a "rogue site" is anything that happens to have a link or piece of information representing a violation of copyright.

See "No Duty to Monitor" at http://blog.reddit.com/2012/01/technical-examination-of-sopa-and.html