Nothing wrong? When was the last time you smoked a spliff? Went to a free party? While IMO theres nothing wrong with that, the govt find something wrong with that dont they. It will make it much easier for the govt to track people, where they go, what they do, what laws theyve broken (even VERY minor laws) and slowly take away peoples rights if they want to.
The idea of ID cards i find absolutely disgusting, its the worst thing Tony Blair has done, if you live in your own country and have done nothing wrong, why the fuck should you have to prove it to people all the time.