| 2005-2010 |
Professor - Graduate Faculty in the Department of Biodefence at George Mason University, Fairfax and Manassas, VA |
| 2000-2005 |
Associate Professor - Department of Integrated Science & Technology at James Madison University, Harrisonburg, VA |
| 1993-2000 |
Assistant Director/Professor- Patterson School of Diplomacy & International Commerce, University of Kentucky |