Russia says Biden's Ukraine "genocide" claim is unacceptable. We discuss what the term means both legally and politically. Suspect in Brooklyn subway shooting has been arrested. Why is it so hard to stop gun violence in America? Sri Lankan Prime Minister offers talks with protesters calling for the government to step down. What's behind the economic and political crisis in the country? And as Japanese rallying against plan to release Fukushima wastewater, we take a look at the consequences of the release.