Today’s drama of the National Security Agency’s domestic eavesdropping recalls another one of decades past, reports the New York Times. In 1975, a Senate committee revealed that the N.S.A. had intercepted citizens’ phone calls and telegrams, insisting the spying was authorized under the president’s constitutional powers. “You feel like you’re in an echo chamber, because the comments on both sides are so similar to 1975,” UGA political science professor Loch K. Johnson, said. “There are a lot of lessons from those times that are relevant today.”