The Rev. Jeremiah Wright, explaining this morning why he had waited so long before breaking his silence about his incendiary sermons, offered a paraphrase from Proverbs: "It is better to be quiet and be thought a fool than to open your mouth and remove all doubt." Barack Obama's pastor would have been wise to continue to heed that wisdom. Should it become necessary in the months from now to identify the moment that doomed Obama's presidential aspirations, attention is likely to focus on the hour between nine and ten this morning at the National Press Club. It was then that...