Gore Vidal, the elegant, acerbic all-around man of letters who presided with a certain relish over what he declared to be the end of American civilization, died on [July 31]. He was 86. The cause was complications of pneumonia, his nephew Burr Steers said. Few American writers have been more versatile or gotten more mileage from their talent. He published some 25 novels, two memoirs and several volumes of stylish, magisterial essays. He also wrote plays, television dramas and screenplays. For a while he was even a contract writer at MGM. And he could always be counted on for a spur-of-the-moment aphorism, putdown or sharply worded critique of American foreign policy. Perhaps more than any other American writer except Norman Mailer or Truman Capote, Mr. Vidal took great pleasure in being a public figure. He twice ran for office - in 1960, when he was the Democratic Congressional candidate for the 29th District in upstate New York, and in 1982, when he campaigned in California for a seat in the Senate. Some of his political positions were ... provocative. Mr. Vidal was an outspoken critic of Israel's treatment of the Palestinians. After the Sept. 11 terrorist attacks, he wrote an essay for Vanity Fair arguing that America had brought the attacks upon itself by maintaining imperialist foreign policies. In another essay, for The Independent, he compared the [9/11] attacks to the Japanese raid on Pearl Harbor, arguing that both Presidents Franklin D. Roosevelt and George W. Bush knew of them in advance and exploited them to advance their agendas.