I have had many a discussion in class on this topic and because of the ready availability of "information" nowadays it is becoming increasingly difficult for parent to properly censor the things that their kids are exposed to and although parents are easy scapegoats, there is a responsability on parents to somewhat at least be aware of what t heyre kids are witnessing.
I think that complete censorship is less detrimental than partial censorship, let me explain. If someone doesnt hear an Eminem (geez such a cliche already) album at all they don't have any material to judge but it is far more harmful for someon to hear small out of context exerpts of songs and take them the wrong way.
I agree with Tawasakm there should be a longer warning period before "edgy" shows and such and I also agree with JWayne625 and Slavik44 on the issue of child pornography, when material like this is created it proves that the exploitation of children has happenned.
To take this point on child porn further, in a discussion that i recently had someone mentioned the fact that this type of material can now be created digitally without harming children and we all agreed that that this was just as detrimental in that it advocated the atrocities commited, I'd like to hear your thoughts on this.