From the Introduction: "Fiscal Year (FY) 2017 marked 71 years of service to the nation for the National Urban Security Technology Laboratory (NUSTL). A federal laboratory organized within the U.S. Department of Homeland Security (DHS) Science and Technology Directorate (S&T), NUSTL has locations in downtown New York City and the Chicago metropolitan area. The laboratory's mission is devoted to advancing the research and development (R&D) and test and evaluation (T&E) of homeland security technologies and tools that prepare and protect our nation. NUSTL is the only national laboratory focused exclusively on supporting the capabilities of state and local first responders to make the nation more secure and resilient to terrorism and catastrophic incidents. NUSTL serves first responders and emergency managers throughout the most populous metropolitan areas in the country--solving the complex challenges faced by urban responders and protecting American communities at large."
U.S. Department of Homeland Security: http://www.dhs.gov/