 | Dallas Paul Tonsager is the Under Secretary for Rural Development in the United States... more » |
| Dana Gresham is the Assistant Secretary for Governmental Affairs in the United States Department... more » |
| Daniel M. "Dan" Tangherlini is the Administrator of the United States General Services... more » |
| David B. Sandalow is the Inaugural Fellow at the Center on Global Energy Policy at Columbia... more » |
 | David D. Pearce is an American diplomat currently serving as U.S. Ambassador to Greece. He... more » |
| David Heyman is the Assistant Secretary, Office of Policy in the United States Department of... more » |
| David S. Cohen is the Assistant Secretary of the Treasury for Terrorist Financing in United... more » |
| Dennis M. McCarthy is the Assistant Secretary of Defense for Reserve Affairs in the United... more » |
| Donald Teitelbaum is the United States Ambassador to Ghana. more » |
