ID Cards - Get Less For More
When the UK ID Card scheme was first announced in 2002 the cost was estimated at between £1.3 billion and £3.1 billion over a period of 13 years.
The Home Office's most recent estimate has revised it upwards, again, to be £5.31 billion over a period of 10 years (2006 to 2016).
I haven't seen the maths reported elsewhere as follows, but it occurs to me this latest estimate from the government works out to be an increase of 122% per annum over the high-end of their original estimates (five years ago). And that is after a recent scoping down and delay of the project.
Yet another wonderful example of the UK government's track record in IT project management: "get less for more".