Night after nights the president, especially in the early days of his administration when there were no social functions, worked until the wee hours alone in his office.  He read the mail and would dictate his replies into an old-fashioned Dictaphone.  The president needed eyeglasses from time to time, and when working, he would push them up on his forehead.  In time, he became sensitive to the need for glasses, and this photographer, unaware of this, got into trouble while preparing a major magazine cover showing the glasses.