Stocks slip, yen gains on Trump trade war, China deflationary woes

By Kevin Buckland TOKYO (Reuters) -Wall Street futures sank and the safe-haven yen and Swiss franc strengthened on Monday as building deflationary pressures in China added to growth worries from a lacklustre U.S. economy and an escalating global trade war. U.S. S&P 500 stock futures pointed 0.5%…