Can anyone explain why the Ultra' are so opposed to the tessera del tifoso. I understand the anti-constitutional argument but to be honest does it really matter that much whether people have a fan card or not? The only reason I can find for anyone to be dead against it is that it will register who goes to the stadia and subsequently it will be easier for the security forces to find someone if they cause trouble. If you don't want to cause trouble then what does it matter if you have one as you will never need to be identified. Maybe I've missed something but thats the only reason I can see.