两大黑天鹅突袭，日本国债崩盘，全球股市大跌

Group 1 - The global markets are experiencing turmoil due to two major "black swan" events: concerns over Japan's fiscal deterioration and Trump's aggressive stance on Greenland, which has reignited fears of trade conflicts among traditional allies [1][3] - The U.S. stock futures saw significant declines, with Dow futures dropping approximately 800 points and Nasdaq futures falling by 2% as tensions over the Greenland issue escalated [1][3] - The demand for safe-haven assets surged, leading to record highs in gold and silver prices as market sentiment worsened [3] Group 2 - Japan's bond market faced turmoil as the yield on 40-year government bonds reached 4% for the first time since 2007, driven by investor concerns over Prime Minister Kishi's proposal to temporarily lower the food tax [4][6] - Kishi's proposal, which is estimated to cost around 5 trillion yen (approximately 316 billion USD) annually, raises questions about funding sources, contributing to fears of worsening fiscal conditions [6][7] - The results of a recent 20-year bond auction were disappointing, reflecting increased caution among investors due to deepening concerns over fiscal deterioration [7]