What's most important, accurate information or democracy?
Democracy allows us to express our values and wants but it also expresses our ignorance unless fed with accurate information. This entertaining TED talk and quiz by Hans Rosling shows just how wrong our intuitions about the world can be.
So how do we ensure good information?
Firstly, there should be a law prohibiting lying in politics, as I have written about before.
Secondly, Parliament should commission studies relevant to the issue at hand.
Thirdly, the ID system should encourage the referencing and linking of studies and data to the ID site, enabling people to debate the numbers, correlations, assumptions, etc.
Finally, each new policy should be measured for its effect, with that information supplied to the public. This is akin to the 6 Sigma quality management system (define, measure, analyze, improve and control) and may lead to further improvements in policy.