Columbia subject headings:
Jackson, Michael P., 1954-
United States. Dept. of Homeland Security--Officials and employees--Selection and appointment.
Harvard subject headings:
Jackson, Michael P., 1954-
United States. Department of Homeland Security--Officials and employees--Selection and appointment.
Princeton subject headings:
Jackson, Michael P., 1954-
United States. Department of Homeland Security--Officials and employees--Selection and appointment.