Last seen in:
- The Washington Post - Feb 6 2021
- New York Times - Mar 13 2019
- The Chronicle of Higher Education - Sep 1 2017
- The Washington Post - May 15 2017
- The Washington Post - Mar 7 2017
- New York Times - Sep 21 2015
- New York Times - Jun 24 2011
- New York Times - Nov 28 2007
- Wall Street Journal - Mar 14 2003 - March 14, 2003 - Palindromic Conclusions
- New York Times - Sep 9 1999