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IA-0136-12 UNCLASSIFIED//FOR OFFICIAL USE ONLYUNCLASSIFIED//FOR OFFICIAL USE ONLY ROLL CALL RELEASE I n C o l l a b o r a t i o n w i t h t h e I T A C G (U) Prepared by the Office of Intelligence and Analysis (I&A), Cyber, Infrastructure, and Science Division. Coordinated with the I&A Homeland CounterterrorismDivision, the Federal Bureauof Investigation, and the Interagency Threat Assessment and Coordination Group. Shared with the DHS Office of Infrastructure Protection. (U) Warning: This document is UNCLASSIFIED//FOR OFFICIAL USE ONLY (U//FOUO). It contains information that may be exempt from public release under the Freedom of InformationAct (5 U.S.C. 552). It is to be controlled, stored, handled, transmitted, distributed, and disposed of in accordance with DHS policy relating to FOUO information and is not to be released to thepublic, the media, or other personnel who do not have a valid need to know without prior approval of an authorized DHS official. State and local homeland security officials may share thisdocument with authorized critical infrastructure and key resource personnel and private sector security officials without further approval from DHS. 17 May 2012 (U//FOUO) Terrorists’ Interest in Attacking Theaters and SimilarMass Gatherings (U//FOUO) An early April 2012 suicide bombing of a theater in Somalia and a violentextremist communication advocating attacks on US theaters highlight terrorists’continued interest in attacking such venues. Although we have no specific or credibleinformation indicating that terrorists plan to attack theaters in the United States, terroristsmay seek to emulate overseas attacks on theaters here in the United States becausethey have the potential to inflict mass casualties and cause local economic damage.— (U//FOUO) On 4 April 2012, an al-Shabaab femalesuicide bomber detonated explosives at the NationalTheater in Mogadishu, Somalia during a speech bythe Somali Prime Minister attended by multiplecabinet members. The bomber blended in with theaudience until her attack, which targeted the VIPs inattendance.— (U//FOUO) On 7 April 2012, an al-Qa‘ida-linked violent extremist urged others toemulate the 2002 Moscow theater hostage attack—in which Chechen terroristsseized the Dubrovka Theater and held over 800 people captive for three daysuntil Russian security forces gassed the theater—by seizing crowded facilities inthe United States, including movie theaters; taking hostages; and demanding therelease of captured al-Qa‘ida-linked or -inspired violent extremists.(U//FOUO) These recent instances demonstrate that mass gatherings such as thoseassociated with theaters likely remain attractive terrorist targets. We encourage facilityowners and operators, security personnel, and first responders to remain vigilant andreport suspicious activities and behaviors that may indicate a potential attack. (U) Somali National Theater UNCLASSIFIED (U//FOUO) Potential Suspicious Activity Indicators— (U//FOUO) Persons in crowded areas wearing clothing that is unusually bulky or atypical forthe season, possibly to conceal suicide explosives or weapons.— (U//FOUO) Persons asking about theater security screening and evacuation procedures.— (U//FOUO) Packages—possibly containing explosives—left unattended in open areas orhidden in trash receptacles, lockers, or similar containers.— (U//FOUO) Suspicious or illegally parked vehicles near a theater or where crowds gather priorto or following performances and event.