A week after the Boston Marathon Bombings, authorities reportedly confirmed that the alleged bombers, Dzokhar and Tamerlan Tsarnaev, used instructions from Al Qaeda in the Arabian Peninsula’s Inspire magazine. Numerous other international and domestic extremists motivated by radical interpretations of Islam have been influenced by the magazine and, in some cases, reportedly utilized the bomb making instructions in their attempts to carry out attacks.
Samir Khan, an American known for distributing terrorist propaganda material online, was killed by a U.S. drone strike on September 30, 2011, two years after he moved to Yemen to align himself with Al Qaeda. Federal authorities have claimed that Khan was the principal author of Inspire, Al Qaeda's first-ever English-language magazine that provides detailed bomb-making instructions and calls on followers to "destroy" America.
Prior to his death in a U.S. drone strike in Yemen on September 30, 2011, Anwar al-Awlaki, an American-born Muslim cleric living in Yemen, encouraged attacks against America by propagating radical online lectures to English-speaking audiences.