"451" Error Will Tell Users When Governments Are Blocking Websites
Daniel_Stuckey writes "To fend off the chilling effects of heavy-handed internet restriction, the UK consumer rights organization Open Rights Group wants to create a new version of the '404 Page Not Found' error message, called '451 unavailable,' to specify that a webpage wasn't simply not there, it was ordered to be blocked for legal reasons."
Until they block the 451 page and redirect it to a 404.
Restore the madness of youth's lechery
According to the Wikipedia article on HTTP status codes 451 already exists for exactly this reason. This doesn't seem new.