Wall Street traders were back in sell-off mode Wednesday while the dollar fell further as downcast comments from Federal Reserve Chair Jerome Powell added to weakness in semiconductor giant Nvidia. US equities opened lower, shrugging off solid retail sales data. But the market dropped much more after Powell warned that Trump’s tariffs could put the Federal Reserve in the unenviable position of having to choose between tackling inflation and unemployment. (File)(Bloomberg) After a relatively peaceful couple of days on markets following tariff-related volatility last week, investors were once again on the defensive. Gold, a safe-haven asset in times of uncertainty, climbed above $3,300 an ounce for the first time. US equities opened lower, shrugging off solid retail sales data. But the market dropped much more after Powell warned that Trump’s tariffs could put the Federal Reserve in the unenviable position of having to choose between tackling inflation and unemployment. Powell said that while the Fed’s employment and inflation goals were largely in balance at this point, policymakers could find themselves in the “challenging scenario” depending …