People think it's bad enough to block out people using certain types of browsers, more specifically only allowing Internet Explorer users to access a website...well it seems George W. Bush's 2004 election campaign web development team want to take this issue a little further... they've banned access to anyone outside the USA!!
If you live outside of the USA check it out yourself - http://www.georgewbush.com. Oops - Access Denied. You don't have permission to access "http://www.georgewbush.com/" on this server.
If you want a gander at the website, and you're not blest by living in the "land of the free", there is still hope. Alternative domain names don't seem to have been blocked. These are outlined in an article on the BBC website.