Off CameraBy: Ted Koppel One of America's most admired TV anchors gives us an intimate chronicle of the final year of the twentieth century. In this engrossing narrative, a national bestseller, are all the most significant matters of that year from Bill Clintons impeachment to Columbine, from the war in Kosovo to Y2K and the mass marketing of Viagra. Here are the people who made the news from Slobodan Milosevic to Hillary Rodham Clinton to Michael Jordan to