President Trump backed off doubling Canadian steel and aluminum tariffs after Ontario suspended a 25% electricity surcharge on several U.S. states. Nancy Cordes talked to Commerce Secretary Howard Lutnick, who brokered the truce with the Ontario premier. American brides are facing the impact of the trade war, as tariffs on imports from China threaten to raise the cost of wedding gowns. Janet Shamlian reports. Federal regulators say there's a "serious safety issue" in the airspace around Reagan National Airport in Washington, D.C. An investigation into the midair collision of a military helicopter and a regional jet in January found there have been many close calls involving planes and helicopters near the airport. Kris Van Cleave has more. After talks in Saudi Arabia on Tuesday, the U.S. and Ukraine said Kyiv would accept a 30-day ceasefire with Russia, with Washington pledging to immediately lift a freeze on intelligence sharing and military aid to Ukraine. Holly Williams reports. Tucked beneath snow-capped mountains in Missoula, Montana, there's a laboratory unlike any other in the country, where scientists are starting fires to better understand how they burn and how to manage them. Carter Evans has more on the cutting-edge research. Five years ago today, the World Health Organization declared COVID-19 a pandemic. Two days later, President Trump declared a national emergency. "CBS Evening News" co-anchors John Dickerson and Maurice DuBois have more. 

President Trump on Thursday threatened to put a 200% tariff on European alcohol if the European Union puts a 50% import tax on American whisky in retaliation for his tariffs on steel and aluminum. Kelly O'Grady examines the latest on the trade war. Winter turning to spring marks the sweet season for maple syrup production. But climate change is threatening the $1.5 billion industry. David Schechter explains. Russian President Vladimir Putin on Thursday responded tentatively to a U.S. proposal that would institute a 30-day ceasefire in the Ukraine war. Putin said that "the idea itself is correct, and we certainly support it," but added that "there are issues that we need to discuss." Holly Williams reports from Kyiv. Veterans make up about 30% of the overall federal workforce. Many veterans who were new on the job, classified as probationary workers, were fired as part of the Trump administration's efforts to reduce the size of government through the Elon Musk-run Department of Government Efficiency. Some feel their military service is being ignored. Nancy Cordes reports. A 32-year-old man told police he intentionally set fire to a home in Waterbury, Connecticut, in order to escape the house, where he alleged that he was held captive for about 20 years. His stepmother was arrested Wednesday on kidnapping and assault charges. Tom Hanson reports. More than 32,000 undocumented immigrants were arrested by U.S. Immigration and Customs Enforcement in the first 50 days of President Trump's second term, the agency said this week. Camilo Montoya-Galvez examines the White House's mass deportation efforts. Three more members of the Norwegian ski jumping team were suspended Thursday over allegations that they altered their suits to make them aerodynamic. In total, five Norwegian ski jumpers have been suspended, along with the team's head coach.