“In a [April 1999] memo found on a computer in Kabul [Afghanistan], [al Qaeda second-in-command] Ayman al-Zawahiri observed that ‘the destructive power of these [biological] weapons is no less than that of nuclear weapons.’ Al-Zawahiri, himself a surgeon, goes on to regret the group’s late start in this area and confesses that ‘despite their extreme danger, we only became aware of them when the enemy drew our attention to them by repeatedly expressing concern that they can be produced simply.’ “ [The 15th of the month used for date sorting purposes only.]
– Daniel Benjamin and Steven Simon, The Next Attack, Page 135