Formerly: Partner, Manatt, Phelps & Phillips; Assistant Secretary of Commerce for Oceans and Atmosphere, US Department of Commerce; with National Oceanic and Atmospheric Administration: Deputy Administrator; 1994-96, General Counsel. Since 1999, with National Geographic Society: currently, responsible for programmes that support over 400 scientific field research, conservation and exploration projects annually; oversees Explorers-in-Residence and Emerging Explorers programmes, geography and science education, geography competitions, development office, exhibitions, live events and arts media; responsible for five-year Genographic Project that will map history of human migration. Since June 2010, Member, National Commission on BP Deepwater Horizon Oil Spill and Offshore Drilling.