Kammala wannan jumla: Hukumar Bincike ta Tarayya (FBI) ta sanar da cewa tana son Gadahn don yin tambayoyi a shekara ta 2004, kuma a ranar 26 ga Mayu, 2004, Babban Lauyan Amurka John Ashcroft da Daraktan FBI Robert Mueller sun sanar da cewa rahotanni sun nuna cewa Gadahn yana daya daga cikin mambobi bakwai na al-Qaeda wadanda ke shirin ayyukan ta'addanci don bazara ko kaka na 2004. Sunan Gadahn ne kawai sabon sunan da Mueller ya fitar a cikin wannan gargadi. Biyu daga cikin sauran 'yan ta'adda da aka ambata a wannan ranar sune Ahmed Khalfan Ghailani da Fazul Abdullah Mohammed. Wadannan biyu sun kasance a cikin jerin 'yan ta'addan FBI da ake nema tun daga shekara ta 2001, an tuhume su saboda rawar da suke takawa a cikin
Harin bam da aka kai a ofishin jakadancin Amurka a shekara ta 1998. Sauran, Amer el-Maati, Aafia Siddiqui, Abderraouf Jdey, da Adnan Gulshair el Shukrijumah duk sun kasance a cikin jerin FBI da ake nema na ɗan lokaci. Jdey ya kasance a cikin FBI "Binciken Bayanai" wanda aka nema tun daga Janairu 17, 2002, wanda aka kara Gadahn tare da sauran uku.