"...the Department's [DHS] infrastructure protection work is not performed only in Washington, DC; rather, it takes place across the country via the Protective Security Advisor (PSA) cadre. PSAs are in place in communities throughout the Nation to assist with local efforts to protect critical assets, providing a Federal resource to communities and businesses. During natural disasters and contingency events, PSAs work in State and local Emergency Operations Centers. PSAs also provide real-time information on facility significance and protective measures to facility owners and operators, as well as State and local representatives. Typically, PSAs are engaged to support the planning and execution of National Special Security Events (NSSEs), led by the U.S. Secret Service, as well as non-NSSEs, led by the Department's Office of Operations Coordination and Planning..." (DHS, Statement for the Record, Robert B. Stephan, Assistant Secretary, Infrastructure Protection, National Protection and Programs Directorate..., before the Committee on Homeland Security, July 9, 2008, page 3)