Back at EPA during her tenure as Assistant Administrator, Horinko refocused the goals of her office around five major priorities: Homeland Security/Emergency Response; One Cleanup Program; Land Revitalization; Energy Recovery, Recycling &amp; Waste Minimization; a Retail Environmental Initiative (the Resource Conservation Challenge) and Workforce Development. Following the September 11 attacks in 2001, she spent her first few months at EPA in the role of assisting in environmental cleanup activities at Ground Zero in lower Manhattan, the Pentagon in Washington, D.C., and the anthrax attack at the Hart Senate Office Building.