U.S. trade warning, Mangione guilty plea, giant hogweed invasion, and more

U.S. Trade Representative Jameson Greer says the talks with Canada are not a “trade war”, but also says Washington will not tolerate any retaliation.Also: Luigi Mangione admits to fatally shooting health insurance executive Brian Thompson in the back on a Manhattan sidewalk in 2024. His lawyers say that means New York State must drop the murder charge against him.And: A giant, toxic plant is spreading fast in Canada. It’s infecting watersheds and giving people painful burns. Experts say we need to get used to it.Plus: Five years of the Taliban in Afghanistan, Montreal police surveillance network, B.C. wildfires, and more.