Ms. Miers had an opportunity to win over the skeptics this week with her answers to the Senate Judiciary Committee's questionnaire. But her responses were so unimpressive that the top Republican and Democrat on that committee took the extraordinary step yesterday of instructing her to give it another try, this time with more "particularity and precision." She thus became perhaps the most important judicial nominee in history to be offered what amounts to a do-over on a take-home quiz.