In early 2002, without notifying his supervisors, Ivins began sampling areas in the Detrick lab space that he believed might be contaminated with anthrax.

• 2002年初，在没有通知督导的情况下，埃文斯开始在底特里克堡实验室内取样，他相信那些地方可能已经被炭疽病菌污染。