Christmas at Sandringham is meant to be a moment of ritual, reflection and restraint. It is supposed to be the monarchy at its moral best. Yet in December 2010 that illusion was already collapsing. After the Queen and royals gathered for church before lunch at their Norfolk estate, one man’s mind was elsewhere. While his family and girls Eugenie and Beatrice would no doubt watch “Mama” deliver her Christmas Day message, he had other priorities. Andrew was not reflecting. He was emailing