Episode 50

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.