I caught an article on the BBC internet news service a couple of days ago about a data stick being lost containing sensetive information. Th worrying thing was they also listed many past events, the CDs lost in the post, heaps of laptops stolen etc. etc.
I had an ID card in HK for may years and found it to be good, however I'd need to see a big change in the UK's data security before being keen on supplying more data then they already have