Author David Greenberg reminds us that there are some Watergate mysteries still unsolved. The major unanswered question: What was the purpose of the break-in? Of course, everybody knows the conspiracy theories; the most notorious involves an appointment book and a prostitution ring just up Virginia Avenue.
Greenberg leaves that sort of stuff alone, however. Among the other questions he notes: Did Nixon order the break-in? What was on the erased 18 minutes of tape? And, why didn't Nixon destroy the tapes?