My wife works on Capitol Hill, and gets evacuated now and again. Sometimes for threats, sometimes for strange substances found in the mail. Her building was shut for quite some time after the anthrax.

It does throw their day off, but it's almost routine now. They have gas mask training every year or so, and a stash of masks in their office. Her office has a standing invitation to move into GPO as temporary office space while they deal with whatever happens. It also keeps us from using the Senate day care service (which is good and rather convenient, but not at the risk).

-jk