From NPR News in Washington, I'm Lakshmi Singh.Three more people are in federal custody in connection with last month terrorist attack during the Boston Marathon.Two of the suspects from Kazakhstan made a brief court appearance a short time ago,accused of removing a backpack containing empty fireworks from bombing suspect Dzhokhar Tsarnaev's dorm room, days after the attackthat killed three and wounded more than 260, some of them severely.NPR's Dina Temple-Raston has more details on the latest suspects.All three men are 19 and they are college friends of Dzhokhar Tsarnaev.The 19-year-old surviving bombing suspect who is in a prison hospital now.Two of the men are from Kazakhstanand they were taken into custody by 11 days ago on immigration charges.They shared an apartment in New Bedford, Massachusetts,where Tsarnaev is said to have spent a lot of time.Officials suspected over a week ago that they might have been helping Tsarnaev after the bombingand they were holding the two on immigration violations while they tried to develop the case.NPR's Dina Temple-Raston.After a two-day policymaking meeting, Federal Reserve officials saythey will continue their extremely stimulative monetary policyaimed at boosting economic growth and reducing unemployment in the U.S..NPR's John Ydstie reportsthe Fed. also suggested in the statement issued following the meeting thatthey might add even more fuel to the stimulus.Fed. officials said the U.S. economy is expanding at a moderate pace,but suggested the budget policies forged by the Congress and White House are restraining economic growth.