This rather inconsequential article (lacking context) says Fort Detrick is still working on its inventory...going on 3 months now? Not surprisingly, the Army hasn't found anything to be concerned about, according to Fort Detrick's PR person. The article implies that much of the base's research remains on hold.
Despite fines and sanctions at other research institutes for safety lapses, I have never heard of a single research center that basically shut down for weeks or months pending a review. That back story--what it took to shut the place down, and whether it relates to the anthrax letters--could be extremely interesting.