BANGKOK (AP) — Shares nosedived around the world Monday as higher U.S. tariffs and a backlash from Beijing triggered massive sell-offs. European shares followed Asian markets lower, with Germany's DAX falling 6.5% to 19,311.29. In Paris, the CAC 40 shed 5.7% to 6,861.27, while Britain's FTSE 100 lost 4.5% to 7,694.00. U.S. futures signaled further weakness ahead. The future for the S&P 500 lost 4.8% while that for the Dow Jones Industrial Average shed 4.1%. The future for the Nasdaq lost 5.3%. On Friday, the worst market crisis since COVID slammed into a higher gear as the S&P 500 plummeted…