AP Top Business News at 11:50 a.m. EDT

Canada will impose retaliatory tariffs on US goods beginning Sept. 8 as trade negotiations collapseA trade war between Canada and the US deepens rupture in what had been a close and durable allianceWhy the bond market is flexing its muscles, and why everyone needs to careTrump urges court to reject BBC's bid to secure records from his family in defamation caseHow bitcoin and gold went from a slump to an MVP week in just a few daysMexican ranchers prepare to resume livestock sales to US under tight controls over screwworm riskFlorida shows how to adapt as coastal cities face growing threats from sea level rise and stormsSchools 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 risksJapan'