A federal appeals court on Wednesday upheld the government’s refusal to admit or deny it has documents related to warrantless eavesdropping on Guantanamo Bay detainees and their lawyers. In doing so, the 2nd U.S. Circuit Court of Appeals accepted a little-known defense called the Glomar doctrine. The doctrine, the court ruled, allows the National Security Agency to refuse to acknowledge to the lawyers suing under the Freedom of Information...