By David French and Devik Jain (Reuters) – Wall Street fell on Tuesday as traders, already positioning for another large interest rate hike this week by the U.S. Federal Reserve, drove markets lower after a Detroit titan provided further evidence of inflation slowing down American business. The benchmark S&P 500 index has lost more than 19% so far this year as investors fear aggressive policy tightening measures by the Fed could tip the U.S. economy into a recession, with recent dire outlooks from delivery firm FedEx Corp and automaker Ford Motor Co adding to woes. Shares of Ford dropped 11.9%…