I take my responsibility to this BB very seriously and would never post anything I had not researched and verified, certainly would never post irresponsible rumors. I respect the CDC site, but just this week the CDC admitted they had not warned the postal workers about the risks of inhalation anthrax "because we did not know the (microscopic) spores could fall out of envelopes." The information I posted was from the New York Times. If you go to their site and check their library and research ,you will find more comprehensive information. You asked, "What is so special about anthrax?, it is found in the soil anyway." It is true, anthrax has been in the soil for thousands of years, and farmers all over the world have tilled the soil behind a cow, ox, mule, horse,human, and never come down with anthrax. Why not? Have you not read any reports that the biological strains used for terrorism are altered from those found in nature? And that if you are plowing behind a mule and turn up a few spores you are unlikely to catch anthrax? It takes 8,000-10,000 inhaled spores to cause inhalation anthrax. This number is not inhaled "naturally, " behind a mule. Why would the nurses go home? For the same reason the senators and representatives went home. Fear. If a person has been exposed to and contaminated by the anthrax spores in the thousands, they must be decontaminated in a room where the vent system has been shut down, the room sealed and placed under negative pressure, and one that is equipped with a special filtering system to filter the anthrax spores from the envoirment. Is your emergency room set up for this? The same requirements for funeral directors. So far , the dead have been decontaminated prior to being taken for embalming. In a contaminated building, the spores can lodge in the air conditioning system, ducts, behind the walls, etc. I do not know how to make this clearer. Anthrax contamination is to be considered different and therefore worthy of special consideration. One last thought to consider, it is the spraying of the spores in the envoirment that makes them so hazardous. A patient presenting to the E.R. is considered contaminated, not because of the spores is his/her intravascular system or lungs, but because of the spores free floating on their clothes, hair, skin, shoes, etc. The causative organisms of HIV, TB, Hepatitis, etc. do not fall off the patients and contaminate the envoirment/health care workers. I hope this clarifies the concept for you.