The Secretary of State is authorized to establish a Foreign Service fellowship program at the Department of State. The Foreign Service fellowship program shall provide a fellowship, for not less than 4 months, for academics in the area of international affairs who are members of the faculty of institutions of higher education. Such program shall give priority consideration in the award of fellowships to individuals teaching in programs in international affairs which serve significant numbers of students who are from cultural and ethnic groups which are underrepresented in the Foreign Service.