May 12 2008
When it comes to the Internet, this haziness about just what is and is not permissible has two implications. At a purely technical level, it makes it harder to reverse-engineer the firewall’s filters. One day, you can reach all pages at the BBC. The next day they’re blocked. If you’re trying to game out the system, you’re stymied. And at a social level, it makes it hard for people to be sure that they’re ever operating in a truly safe zone, since the rules of enforcement might shift tomorrow.