There may have been no rioting in the Highlands, but no one has been watching the arson and looting of Britain’s cities more closely than the Queen. With fewer than six months to her Diamond Jubilee, when celebrations are planned for the length and breadth of the kingdom, the disorder has alarmed aides planning the extravaganza. Central to their concern is not just the damage to the country’s image overseas, but also how quickly the feelgood factor engendered by April’s Royal Wedding has been lost. From her summer home in Balmoral, the Queen has kept in touch with developments and...