Jill Biden pranked her staff, the Secret Service and reporters traveling with her on her plane, dressing as a flight attendant and serving ice cream bars in a disguise so good no one recognized her. The 69-year-old first lady, famed for her love of pranks and practical jokes, was flying home from California to Washington DC on Thursday. As food was being served to the press pool, a flight attendant with short black hair wearing a black pants suit, black face mask and a name badge reading Jasmine walked through the staff, Secret Service and press cabins passing out Dove...