The building has been closed since a few days after a letter laced with anthrax was opened in the South Dakota senator's office on Oct. 15, exposing over two dozen office workers to the potential germ warfare agent.
NO wonder the postal people are going postal...what if you worked in an environment that had the SAME anthrax but don't seem to get this type of clean up...
The retired Ft Derrick expert decontaimined hundreds of buildings, he should know. He used formaldehyde gas. I suspect that the simple sugar of formaldehyde would cause the spores to open up and then kill 'em. Carbon loves carbon is the rule.