Milton Leitenberg noted in the 2005 work Assessing the Biological Weapons and Bioterrorism Threat, "there is apparently no other 'terrorist' group that is known to have successfully cultured any pathogen."
” 米尔顿·莱滕贝格尔（Milton Leitenberg）在自己2005年的著作《评估生物武器和生物恐怖主义威胁》（Assessing the Biological Weapons and Bioterrorism Threat）中指出，“显然，还没有其他任何已知的‘恐怖主义’组织成功培养了任何病原体”。