Wall Street fell sharply on Tuesday as the new Federal Reserve chair told Congress that he expects more interest rate hikes ahead.<br />Jerome Powell signalled the Fed could potentially lift interest rates more this year to keep the U.S. economy from overheating ... sparking anxiety among some traders.<br /> The Dow Jones slipped by 300-points,... or little over one-percent to 25,410.<br />The S&P 500 and Nasdaq,... both finished more than one-point-2 percent lower. <br /> And shares in Korea reversed early gains to close lower by less-than-one-percent at 2,456-point-1-4. <br />Junior index KOSDAQ,... also lost a bit at 874-point-0-1. <br />
