> You want to impose liability on Google and Bing because they index the whole internet and the internet has bad stuff on it?

Yes. If you found some, i don't know, child pornography, say, lying in the street, then went around showing it to people saying, "hey, look what I found", that would be considered illegal/repugnant/stupid, right? Why should that same action analogized to the digital domain be any less illegal/repugnant/stupid? I don't think it is.