"You've taken on a design challenge and come up with a solution that's been widely admired and won you accolades. But a year or so later, you realize you made a mistake. There's something horribly wrong with your design. And it's not just something cosmetic — a badly resolved corner, some misspaced type — but a fundamental flaw that will almost certainly lead to catastrophic failure. And that failure will result not just in embarassment, or professional ruin, but death, the death of thousands of people."You are the only person that knows that something's wrong. What would you do?"This sounds like a hypothetical question. But it's not. It's the question that structural engineer William LeMessurier faced on a lonely July weekend almost 30 years ago. . . ."
