Washington (AFP) – US central bankers last month flagged the concern that sky-high inflation could become a permanent fixture, and stressed their readiness to continue raising interest rates to tamp down price pressures, according to the minutes of the latest policy meeting released Wednesday. The Federal Reserve last month implemented the most aggressive interest rate increase in nearly 30 years, as policymakers cited worries that price pressures had shown no signs of easing, according to the record of the June 14-15 meeting. The members of the Fed’s policy-setting Federal Open Market Committ…