Group 1 - Federal Reserve Chairman Jerome Powell stated that the significant policy adjustments in tariffs by the Trump administration are unprecedented in modern history, placing the Fed in uncharted territory [1] - Powell emphasized that the current tariff increases have exceeded expectations, leading to ongoing uncertainty that could result in sustained economic damage, including weakened economic growth, rising unemployment, and accelerated inflation [2][3] - Most economists believe that the tariff policies will ultimately exacerbate inflation and increase unemployment, particularly with the implementation of large-scale "reciprocal tariffs" postponed until July [2][4] Group 2 - Powell predicted that inflation is "very likely" to intensify, indicating that part of the burden from tariffs will be borne by the public [3] - Following Powell's remarks, U.S. stock markets experienced significant declines, with the Dow Jones dropping 700 points (1.7% decrease), the S&P 500 falling by 2.5%, and the Nasdaq Composite decreasing by 3.5% [3] - The World Trade Organization (WTO) reported that the global trade war will inflict damage on the global economy, with North America experiencing a more pronounced economic slowdown compared to other regions [4]