In a rebuff to the government’s detainment policies, a federal district judge in Denver has ordered the release of two Pakistanis held on immigration-related charges while the F.B.I. investigates them for possible links to terrorism. The judge, Lewis T. Babcock, ruled on Tuesday that the government had failed to show that the men, Irfan Kamran and Sajjad Naseer, were dangerous. Judge Babcock also played down the F.B.I.’s concerns that Mr. Naseer had briefly attended a paramilitary training camp in Pakistan run by a terrorist group called the Army of Muhammad. Full Story