The First Responder's Toolbox bulletin “Recognizing Arson With a Nexus To Terrorism” PDF 424 KB, originally published in 2017 by the Joint Counterterrorism Center (JCAT), has been downgraded from For Official Use Only (FOUO) to Unclassified (U) to provide situational awareness to a broader audience. First responders and other governmental authorities who may be involved with mitigating arson incidents can benefit from the response and investigative considerations the JCAT provides.
Terrorists remain interested in arson to conduct attacks, as its use requires little to no specialized skills or training. Precursors are inexpensive, legal and readily available. The alleged shooter in the Poway, California, synagogue shooting last month was also charged with arson in connection to a fire set at an Escondido mosque in March. The arsonist left graffiti referencing the recent New Zealand mosque shootings that killed 50 people.
First Responder's Toolbox bulletins are publicly available at nctc.gov, as well as on the JCAT page on the Emergency Services (ES) and Intelligence Communities of Interest on the Homeland Security Information Network (HSIN), and the Special Interest Group (SIG) on FBI's Law Enforcement Enterprise Portal (LEEP).