Occasionally I encounter proposals from groups whose plan requires first making government release some data, or pass some law. Then, once that happens, they can build something really cool and useful. There are lots of crazy ideas in this field, but this approach is amongst the craziest. As Micah Sifry explained to the attendees at PDF Europe this afternoon1, in a neat prelude to this post, one of the reasons the US (and by implication also the UK) is further ahead with these sorts of sites than most countries, is simply because they hacked Congress rather than waiting to be given what they wanted.
The approach here is straightforward: simply act the way you want the world to be, then wait for reality to catch up.