I don't think there's much net activity in North Korea, to be honest. You might be thinking of China? In any way filters are usually working at the ISP level, n

I don't think there's much net activity in North Korea, to be honest. You might be thinking of China? In any way filters are usually working at the ISP level, not on client machines. See http://www.boingboing.net/2008/05/22/cisco-internal-memo.html http://www.boingboing.net/2008/05/22/cisco-internal-memo.htm... That and voluntary censorship/collaboration by companies: - Google censors itself for China: http://news.bbc.co.uk/1/hi/technology/4645596.stm http://news.bbc.co.uk/1/hi/technology/4645596.stm - Yahoo 'helped jail China writer': http://news.bbc.co.uk/2/hi/asia-pacific/4221538.stm http://news.bbc.co.uk/2/hi/asia-pacific/4221538.stm