barbara hope zuckerberg. we try to live in the moment, to not miss what's right in front of us. at mutual of america, we believe taking care of tomorrow can help you make the most of today. mutual of america financial group: retirement services and investments. >> for 25 years, consumer cellular's goal has been to provide wireless service that helps people communicate and connect. we offer a variety of no-contract plans, and our u.s.-based customer service team can help find one that fits you. to learn more, visit www.consumercellular.tv. additional support has been provided by: and by the corporation for public broadcasting, a private corporation funded by the american people. and by contributions to your pbs station from viewers like you. thank you. >> sreenivasan: good evening and thank you for joining us. fierce fighting on day three of the russian insion of ukraine. ukrainians kept control of their capital city of kyiv, civilians took up arms, and many thousands fled to neighboring countries. ( explosions ) on the outskirts of kyiv, a missile hit a high-rise residential bui

barbara hope zuckerberg. we try to live in the moment, to not miss what's right in front of us.mutual of america, we believe taking care of tomorrow can help you make the most of today. mutual of america financial group: retirement services and investments. >> for 25 years, consumer cellular's goal has been to provide wireless service that helps people communicate and connect. we offer a variety of no-contract plans, and our u.s.-based customer service team can help find one that fits you. to learn more, visit www.consumercellular.tv. additional support has been provided by: and by the corporation for public broadcasting, a private corporation funded by the american people. and by contributions to your pbs station from viewers like you. thank you. >> sreenivasan: good evening and thank you for joining us. russian tanks, troops and weapons were on the move across ukraine for a fourth day as the invasion continued over the course of a fast-moving day of developments: more nations added new sanctions, russia's president put nuclear forces on alert and plans for possible peace talks

barbara hope zuckerberg. we try to live in the moment, to not miss what's right in front of us.mutual of america, we believe taking care of tomorrow can help you make the most of today. mutual of america financial group: retirement services and investments. >> for 25 years, consumer cellular has been offering no contract wireless plans designed to help people do more of what they like. our u.s.-based customer service team can help find a plan that fits you. to learn more, visit www.consumercellular.tv. additional support has been provided by: and by the corporation for public broadcasting, a private corporation funded by the american people. and by contributions to your pbs station from viewers like you. thank you. >> sreenivasan: good evening and thank you for joining us. ukraine asked for a ceasefire, russia extended military exercises in belarus, and president joe biden held a national security council meeting at the white house today as tensions between russia, ukraine and nato-nations remained high. in belarus, the defense ministry said joint military exercises with russian

barbara hope zuckerberg. we try to live ithe moment, to not miss what's right in front of us.mutual of america, we believe taking care of tomorrow can help you make the most of today. mutual of america financial group: retirement services and investments. >> for 25 years, consumer cellular has been offering no contract wireless plans designed to help people do more of what they like. our u.s.-based customer service team can help find a plan that fits you. www.consumercellular.tv. additional support has bn provided by: and by the corporation for public broadcasting, a private corporation funded by the american people. and by contributions to your pbs station from viewers like you. thank you. >> sreenivasan: good evening and thank you for joining us. president joe biden spoke with ukrainian president volodymyr zelensky today as more u.s. troops aived in eastern europe and diplomatic talks continued. in a readout of the call between the two leaders, the white house said, “president biden made clear that the united states would respond swiftly and decisively, together with its all