EXACTLY TEN YEARS AGO this August, the thirty-seventh President of the United States, facing imminent impeachment, resigned his high office and passed out of our lives. “The system worked,” the nation exclaimed, heaving a sigh of relief. What had brought that relief was the happy extinction of the prolonged fear that the “system” might not work at all. But what was it that had inspired such fears? When I asked myself that question recently, I found I could scarcely remember. Although I had followed the Watergate crisis with minute attention, it had grown vague and formless in my mind, like a nightmare recollected in sunshine. It was not until I began working my way through back copies of The New York Times that I was able to remember clearly why I used to read my morning paper with forebodings for the country’s future.