Hitler's Piano PlayerErnst Hanfstaengl was court jester, pianist, and foreign press chief for Hitler; he even claimed to have devised the chant of Sieg Heil. However, when the two men fell out, he fled to Britain, where he was interned and later transferred to America. There, he worked as the star of Roosevelt's 'S Project,' informing on 400 leading Nazis and creating a detailed psychological portrait of Hitler. Through newly declassified documents, interviews with