Click Here to Read: A Liberator, But Never Free: An Army doctor helped free the Dachau concentration camp in 1945, meticulously documenting his experiences in letters home to his wife. Hidden for the remainder of his life, the letters have resurfaced, and with them, questions about the G.I.’s we know only as heroes. By Steve Friess Photographs by John Clark in The New Republic on May 17, 2015.