'Operation Omicron' is now underway at Buckingham Palace to ensure The Queen is not alone at Christmas, an insider says.The monarch could be without some of her nearest and dearest if her plans to spend the festive season at Sandringham are cancelled. After her decision to scrap next week's traditional pre-Christmas dinner for up to 50 family members due to soaring Covid cases, sources have previously said that 'all plans are under consideration' - including her annual trip to Norfolk.