Apparently Facebook has shut down the News Feed as there's a malicious wall post doing the rounds and going viral. What I've heard is you get a post from a friend which is full of swearing and has a link in it to get rid of the post. Of course that link then sends it on to all your friends and it keeps on going. The only safe way to get rid of it, so I'm told, is to click on the X on the top right corner of each wall post and then pick the "Mark as Spam" option. My News Feed only has posts from the last 40 minutes or so but I've certainly got some interesting e-mail notifications.