AP Top Business News at 6:40 a.m. EDT

US imposes 50% tariffs on $20 billion worth of Canadian products, and Canada says it will retaliateMexico resumes livestock sales to US under tight controls over screwworm riskSchools are starting to teach AI literacy. For many, that means helping kids see chatbots' flawsTesla recalls nearly 3M vehicles in China over door handle safety risksWhy Treasury Secretary Bessent's moves to calm the bond market haven't worked so farTikTok reaches $400 million settlement with US Justice Department over children's privacyRussian and Ukrainian attacks kill 5 people a day after deadly shopping mall drone strike by MoscowUS stocks rise, even as the bond market applies more pressureIranian families struggle to afford the basics as US ratchets up economic warfareTrump announces plan to lower beef prices,