Ramba uchiverenga ndima iyi - Kubva muna April 2009 kusvika muna September 2011, Bernstein akatanga kushanda seMutariri weZvenharaunda uye akazova Mutevedzeri Mukuru weMutevedzeri Wemunyori weZvenyaya dzeHurumende dzeUnited States Department of Homeland Security. Muchiitiko ichi, akabatanidza DHS's outreach kune mayors uye magavhuna. Munguva yake paDHS, Bernstein akashanda zvakanyanya pamhinduro dzakawanda kuzviitiko zvakakosha uye zvirongwa zvematongerwo enyika kusanganisira BP Deepwater Horizon Oil Spill
, kudengenyeka kwenyika muHaiti, pamwe chete nokuparadzirwa kwemashoko ouchenjeri kuhurumende dzenyika nehurumende dzomunharaunda munguva dzokutyisidzira kwakawedzera.