Next prime targets! Homosexuality. S/M. Drug information (IE not the 'Marijuana will make you psychotic!!!! lies in the school material). Libertarian material. Sodomy! And so on.
I'm not saying it will happen now. Or the next 10 years, but if we allow ourselves to be subjected to a blacklist prone to political and economical influence then sooner or later it will.
Once again, this does not bother me (and in fact I would welcome it, and much much more besides) but it still is all irrelevant because the fact remains that the internut is not the be all and end all re: sharing of information and ideas, etc.
In fact, perhaps our education standard would rise if the gathering of information took a bit more effort, time, and care than throwing a few linked keywords into a search engine ... not that I'm advocating the demise of those wonderous tools and services – far from it.
regarDS