I can only imagine the employment ad these guys answered:
"WANTED: Pilots, certified for single-engine fixed-wing type, for aerial photography. Must possess valid passport and have current immunizations. Four positions available. Immediate hire. Salary based on qualifications. Inquire by phone at 202-647-4000 or mail resume to U.S. Department of State, 2201 C Street NW, Washington, DC 20520."