What Are the Unintended Consequences of Failure?

How do you create policy without turning a blind eye to all the unintended consequences that could happen? Bhuc: Policy makers get, like, very bad, bad things happen when things go wrong. I think they're going to be hounded far more for the 99 projects that failed than the one project which succeeded vastly. Ah, i think it seems about mad to imagine that this way of thinking works but  i think there is no such thing as 'the right answer'