The Homeland Security Information Center at NTIS is an invaluable resource for scientific and technical information from the U.S. Government, its contractors, and complementary material from international sources. The HSIC is categorized into these major security concerns: health & medicine, food & agriculture, bio and chemical warfare, preparedness and response, and safety training. Products are available in a variety of formats: electronic download, online access, computer products, multimedia, microfiche and paper.