Canada’s classroom violence problem, Trump’s trade war, water temps and entangled whales, and more

Canada’s main teacher federation says violence in classrooms has reached a crisis point. From class size to the lingering effects of pandemic shutdowns, the reasons vary. But they say violence in the classroom is increasing — even with some educators wearing Kevlar.Plus: A top U.S. trade official says Canada may need to face a future with tariffs, regardless of what comes out of upcoming CUSMA renegotiations. The comments follow a State of the Union speech by President Donald Trump, in which he put America’s trade partners on notice, and suggested the revenue generated from import levies could one day replace income taxes for U.S. citizens.And: Why a changing environment may be linked to increased harm for the West Coast humpback whale population in Canada and the USPlus: Poilievre’s trade message reset, Mexico steps up security, the Pentagon’s Anthropic ultimatum, and more.