The Duchess of Cambridge will attend the BBC's Sports Personality of the Year show, her first public engagement since being admitted to hospital with severe morning sickness, St James' Palace said.
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Brad Treat, 38, was killed on a trail in the Halfmoon Lakes area of the Flathead National Forest, just outside Glacier National Park.
Appeal judges are to decide on Thursday whether a woman can use the frozen eggs of her dead daughter to give birth to her grandchild.
The £70 million F-35B jet arrived at RAF Fairford in Gloucestershire, two years after engine trouble postponed its first scheduled visit.