Two years later, Keynes’s heart finally gave out and he died at the age of sixty-one. White was appointed the U.S. executive director of the International Monetary Fund after the war, but in 1947, under investigation by the FBI, he was forced to resign, citing ill health. The next year, after being publicly named as a Soviet agent by Whittaker Chambers, he was called to testify before the House Committee on Un-American Activities. Three days after his testimony, on August 16, 1948, he, too, collapsed and died of a heart attack at the age of fifty-six.