I agree, that is a problem. The 'think of the children' or 'be afraid of the terrorists' argument will at some point probably be used to outlaw encryption and to make it mandatory that you sign in to the internet. No more anonymizers, proxies etc.
there are already questions in our (im from germany) government to extend this censorship to 'killing games' and such. great fun. I guess it becomes time to throw rocks again.
The problem is that a democratic country installs such censorship mechanisms though in its constitution you can read "censorship doesn't take place".