this is bbc news. the top stories. china hits back at america s diplomatic boycott of the winter olympics saying it is not in the spirit of the games. and president biden will hold video talks with vladimir putin later as fears grow of a potential russian invasion of ukraine. to new york next where workers in the private sector as well as the public sector will be required to have vaccines for top mare bill de blasio said the rule is the first of its kind in the country and will be in effect at the end of the month. vaccines. mayor bill de blasio. michelle fleury has more from new york.- de blasio. michelle fleury has more from new york. early on new york more from new york. early on new york was more from new york. early on