By Lindsay Dunsmuir and Ann Saphir (Reuters) -Federal Reserve officials are helping shape market expectations for sharper interest-rate hikes to curb the surge in inflation, but have not managed to dispel fears the tightening cycle could blow a hole in the economy and labor market. “The Fed needs to move aggressively to keep inflation under control,” St. Louis Fed President James Bullard told Bloomberg TV on Tuesday, calling for the central bank to raise its benchmark overnight interest rate to 3% this year. Bullard dissented last week as the rest of his colleagues agreed to raise the federal …