WASHINGTON (Reuters) -Data showing temperate consumer inflation in April does not necessarily reflect the impact of rising U.S. import tariffs, with the Federal Reserve still needing more data to discern the direction of prices and the economy, Chicago Fed President Austan Goolsbee said on Wednesday. Consumer prices rose a less-than-expected 2.3% in April, for the smallest annual increase in four years, but the headline number was held down by falling food prices, which can be volatile from month to month.