Even if you skip past the ethical issues such a card throws up, this will be a complex implementation. So far, the government has not proved the project's business case; and the benefits it could deliver are proving hard to measure.
Given the complexity of the systems the scheme would need to support it, and the tight deadlines that would doubtless apply, this is sure to be a high-risk project. Sufficient Gateway Reviews will need to be mapped over its lifecycle - and the review's recommendations had better be heeded.
This was first published in January 2003