Wall Street futures experienced a marked decline as the yen and Swiss franc strengthened early Monday. This development is attributed to intensifying deflationary pressures in China, which are fueling concerns about global economic stability amid the U.S. economic slowdown and an escalating trade war. U.S. S&P 500 stock futures were down by 0.5%, while Nasdaq futures fell by 0.6% as of 0137 GMT. In Asia, Hong Kong's Hang Seng index dipped by 0.1%, aligning with a mainland Chinese blue-chip index. Conversely, Japan's Nikkei index showed a slight increase of 0.2% after fluctuating between gains and losses. Tensions are escalating as...