China on Monday unveiled its DeepSeek artificial intelligence, shocking the U.S. tech sector and sending chip-maker Nvidia's stock tumbling. Anna Coren reports. After three years of war, a little more than half of Ukrainians say they're ready to accept a ceasefire with Russia, but they have conditions. Holly Williams explains. A memo from the White House budget office sent Monday called for a spending freeze on federal assistance beginning Tuesday night, causing chaos and confusion about the scope of the order. But just as the freeze was set to kick in, a federal judge paused the directive. Nancy Cordes has more. Immigration and Customs Enforcement agents are embarking on a weeklong operation in New York City targeting undocumented migrants. Newly confirmed Homeland Security Secretary Kristi Noem joined some of the raids and spoke to Major Garrett about the ongoing deportation sweeps. 

There were no survivors when an American Airlines flight carrying 64 people collided with an Army Black Hawk helicopter carrying three soldiers Wednesday night while approaching for landing at Reagan National Airport. CBS News has learned that just one air traffic control worker from the Reagan National Airport tower was managing the helicopters and planes, a job normally done by two people. Kris Van Cleave has the latest. District of Columbia Fire and Emergency Medical Services Chief John Donnelly spoke to CBS News about the agency's response to the midair collision between an American Airlines plane and an Army helicopter, and what recovery efforts will look like in the coming days. There were three soldiers aboard the Sikorsky H-60 Army Black Hawk helicopter that collided with an American Airlines flight carrying 64 people outside Washington, D.C., on Wednesday night. Defense Secretary Pete Hegseth said the Black Hawk was on a "routine" training flight at the time. Charlie D'Agata has more on how Black Hawks are utilized around the nation's capital. Robert Sumwalt, CBS News transportation safety expert and analyst and former chairman of the National Transportation Safety Board, detailed a map and timeline of the midair collision between an American Airlines flight and an Army helicopter. Six members of the Skating Club of Boston, an elite figure skating community, were killed aboard the American Airlines flight which collided with an Army helicopter Wednesday night near Reagan National Airport. Beth Germano has more. Given the congestion in the skies on a daily basis, U.S. aviation has a remarkable safety record. However, Wednesday's midair collision between a passenger jet and an Army helicopter outside Washington, D.C., may have shattered the flying public's sense of safety. Mark Strassmann explains.