This document from the Emergency Management and Response Information Sharing and Analysis Center is "distributed weekly to provide members of the Emergency Services Sector with information concerning the protection of their critical infrastructures." Sections include: "Increased Vigilance"; "Domestic Nuclear Detection Office"; "International Atomic Energy Agency Products"; and "Active Shooter: What You Can Do".
EMR-ISAC Infogram 18-11
U.S. Fire Administration: http://www.usfa.dhs.gov/
InfoGram 18-11; InfoGram (May 5, 2011), v.11 no.18