G Gordon Liddy, the former FBI agent who masterminded the Watergate burglary on behalf of Richard Nixon, once said that he would like to kill John Dean by shoving a pencil through his neck. This week, as the cerebral Mr Dean publishes Worse than Watergate: the Secret Presidency of George W. Bush, the sentiment is likely to be shared by many in Mr Bush's White House. Thirty-one years ago Mr Dean - Nixon's legal counsel - began co-operating with prosecutors into the Watergate burglary, revealing the inner workings of the most secretive and manipulative administration in American history. Now, in...