I not only could not stifle controversy among your readers.. I welcome it. This Administration intends to be candid about its errors; for as a wise man once said: "An error does not become a mistake until you refuse to correct it." We intend to accept full responsibility for our errors; and we expect you to point them out when we miss them.

John F. Kennedy: Containing the Public Messages, Speeches, and Statements of the President (ed. 1962)