My organization has an entire division that works heavily in the emergency preparedness realm. That division -- National Security and Emergency Management Programs -- has offices in D.C. although our company's headquarters are in Oak Ridge, TN. NSEMP just about always has openings and is looking for fresh faces. You can see their whole list of current openings here: http://www.orau.org/national-security-emergency-management/default.aspx.
Within that group you might want to talk to Monika Schiller about what kinds of things they are looking for in new staff members and what some recommended paths are to working with them. She can be reached at [email protected].
Best of luck to you,