The U.S. counterintelligence head says the list of threats is long and getting longer Mike Casey tells NPR that the scale of spying against the United States is "impressive and terrifying." He says: "More players are getting into it with more tools, going after more targets." Ryan Lucas
World A mayor in Ukraine aids his town's few remaining people, as Russia closes in Russian attacks have driven out most of Chasiv Yar's residents. NPR accompanies the mayor on a routine visit to check on those who remain. Joanna Kakissis Claire Harbage Polina Lytvynova
World Ukraine's Kharkiv moves classrooms underground so kids survive Russian attacks With Russian troops on the offensive, Ukraine's second-largest city is taking the drastic step of moving classrooms for primary and secondary education underground. Joanna Kakissis Claire Harbage Polina Lytvynova
World What to know about the Moscow concert attack and what's next in the case Russia is still reeling from Friday's attack. Authorities have confirmed at least 137 dead. Suspects, some showing signs of torture, have been charged. Here are other key developments. Charles Maynes
World Deaths and injuries are reported after an attack on a concert hall outside Moscow Reports from Moscow say two to five gunmen attacked a concert hall outside the capital. A fire broke out after the attack. According to Tass news agency, some people remain trapped in the building. Nick Spicer
World Russia attacks Ukrainian electrical power facilities, causing widespread outages The Ukrainian energy minister said the nighttime drone and rocket attacks were "the largest attack on the Ukrainian energy sector in recent times." At least three people were killed, officials said. The Associated Press
World Protesters in Cuba demand food and electricity as shortages bring hardship Hundreds of people have taken to the streets in recent days in the city of Santiago. Emily Green
World Sweden officially joins NATO as worries grow over Russian aggression in Europe Sweden has formally joined NATO as the 32nd member of the transatlantic military alliance, ending decades of post-World War II neutrality as concerns about Russian aggression in Europe have spiked. The Associated Press
World Putin warns of nuclear war if NATO sends troops to Ukraine Russian President Vladimir Putin issued explicit nuclear threats to the West, even as he assured Russians their country could both win the war in Ukraine and thrive economically. Charles Maynes
World What Tucker Carlson's interview with Vladimir Putin shows, and what it hides Tucker Carlson did not ask Putin about how so many of his opponents wind up imprisoned and murdered, or the warrant the International Criminal Court has out for his arrest for war crimes in Ukraine. Scott Simon