>> o'donnell: good evening, to our viewers in the west and thank you for joining us. we're going to begin tonight with president biden's first trip overseas, a mission the white house says, "to repair relationships with allies" and deliver a warning to adversaries. in a bit of vaccine diplomacy, sources tell cbs news that mr. biden will announce tomorrow that the u.s. is donating 500 million doses of pfizer shots to 92 countries, a goodwill gesture designed to blunt criticism that his administration isn't doing enough to end the pandemic globally. so for a man who has spent his political career focused on international relations, mr. biden's presidency has centered on one issue: beating the virus here at home. this week's tour will change that, with plans for mr. biden to reaffirm america's membership in nato and to face off with vladimir putin over ransomware attacks against the u.s. launched from inside russia. not even a swarm of cicadas could stop tonight's diplomatic mission, though they did delay flights in washington, grounding