WASHINGTON (Reuters) - Unable to go to Pyongyang in his final days as president because of preoccupation with the Middle East, Bill Clinton invited North Korean leader Kim Jong-il to Washington in hopes of closing a missile deal, but was turned down, his former secretary of state says. In her new autobiography, Madeleine Albright reveals that Clinton later regretted investing his last days in office pursuing an elusive Israel-Palestinian accord rather than a possible agreement with the isolated communist regime. In the book, "Madam Secretary," and during an interview with Reuters, Albright made clear she believes President Bush has squandered...