It's happening right now Bobert. Pro Mubarak forces have stormed into Tahrir (Liberation) Square which has been occupied by anti-governnment crowds for the last nine days. Some of these pro-Mubarak attackers, the Egyptian media is calling them "pro-stability forces", are mounted on horses and camels, brandishing whips and machetes and throwing molotov cocktails at the so far relatively peaceful anti-government crowd. CNN's Anderson Cooper was, himself struck in the head and forced to retreat from the square. He is reporting hearing gunfire a few blocks away.