The ethics of employment

Smart cards track commuters.

Privacy threat or a genuine attempt to improve public transport in London?

I'm a believer in public transport. I lived and worked in London for a while and the Tube is a national treasure; the only way to get around while retaining ones sanity. But there are legitimate concerns with such data tracking.

Like any tool, I.T. per se is not inherently evil. It is the employer of the tool that decides if it's use is to be for good or bad.