in early 2002 confirmed that the attack powders were not weaponized.

At least 22 people developed anthrax infections, 11 of whom contracted the especially life-threatening inhalational variety. Five died of inhalational anthrax: Stevens; two employees of the Brentwood mail facility in Washington, D.C. (Thomas Morris Jr. and Joseph Curseen), and two whose source of exposure to the bacteria is still unknown: Kathy Nguyen, a Vietnamese immigrant resident