(The photo below) Friedrich A. Hayek arriving for one of the morning sessions at the second Austrian Economics conference at the University of Hartford in June 1975. The conference was sponsored by the Institute for Humane Studies, with Don Armentano as the conference director.
Toward the end of the week, Hayek was called away for a phone call during one of the sessions. When he returned and the session ended, Hayek said that the Internal Revenue Service (IRS) had tracked him down at the conference, and told him he would not be allowed to leave the country later in the summer before he documented all income he earned while in the United States and had paid all required taxes owed! Friedrich Hayek potential prisoner of the Tax State.