WHO warns of persistent threats from COVIDTkachuk gets 2 goals, Batherson scores in the shootout, and Senators beat Canadiens 5Belgrade celebrates Chinese New Year with fireworks, dragon danceTexas Gov. vows to expand border barriers amid standoff with White HouseOlympic track uniforms spark online debate about who designed them and why they're so skimpyNicolai Hojgaard goes from late thirdOver 800 officials from U.S., Britain, Europe unite to protest Israel policiesLawsuits, protests call on U.S. gov't to halt support for IsraelThick blanket of fog in Pakistan's capital affects routine lifeIndia's election commission directs political parties not to involve children in campaigning