Right...Chem suits are customary. However, if there were any chemicals that would have caused harm, people would have already shown some signs - burns, breathing problems, eyes burning, etc.
But, biological is different. I think the suits are probably also capable of keeping out any biological "gremlins" and they are not just outfitted to protect from chemicals.
531 posted on 07/21/2005 6:26:38 AM PDT by CitizenM
("An excuse is worse than an lie, because an excuse is a lie hidden." Pope John Paul, II)