For decades Buckingham Palace has faced a series of crises from the death of Princess Diana, to her son Prince Harry's memoir and scandals around Andrew Mountbatten-Windsor, but each time the British monarchy has bounced back, bruised but unbowed. As it deals with the latest drama in the form of a book, ‘Swan Song: Diana, My Sister,’ by Charles Spencer, the brother of King Charles' first wife Diana, the historic institution, as it has many times before, is seeking to emerge without lasting damage to its standing