News Snapshot:
By Kevin Liptak, CNN (CNN) -- President Joe Biden slipped into Kyiv on Monday for the first time since Russia launched a full-scale invasion of Ukraine almost a year ago, demonstrating in dramatic personal fashion his commitment to the country and its struggle as the war enters an uncertain new phase. The highly secretive visit -- which took place as air raid sirens could be heard ringing out around Kyiv while Biden walked alongside President Volodymyr Zelensky around the gold-domed St. Michael's Cathedral -- comes at a critical moment in the 12-month conflict, with Russia preparing for an expected spring...
