Committee Print 112-B: Boko Haram: Emerging Threat to the U.S. Homeland, December 2011 [open pdf - 234KB]
From the Introduction: "On August 26, 2011, a suicide bomber drove a vehicle-borne improvised explosive device (VBIED) into the United Nations (U.N.) headquarters in Abuja, Nigeria, killing 23 people and injuring more than 80 others. Responsibility for the bombing, one of the deadliest in the United Nations' history, was claimed by Boko Haram, an Islamist religious sect turned insurgent group based in the predominantly Muslim northern Nigeria. While this attack occurred inside Nigerian borders, it was the first time Boko Haram had targeted an international, non-Nigerian entity. [...] nd most importantly, the U.S. homeland. Historically, Boko Haram has been focused on Nigerian government targets. Until recently, Western intelligence services did not widely view Boko Haram as a potential threat. Even after the U.N. attack, Nigerian experts remain skeptical about Boko Haram's intent and capability to strike U.S. interests and the homeland. However, in the recent past, the U.S. Intelligence Community has underestimated the intent and capability of other terrorist groups to launch attacks against the U.S. homeland. The most notable recent examples include al Qaeda in the Arabian Peninsula (AQAP), and Tehrik-i-Taliban Pakistan (TTP), also known as the Pakistani Taliban."
Committee Print 112-B
U.S. Government Publishing Office: http://www.gpo.gov/