Kk, your an idiot! The first responders had respirators, and SCBA's. The chose not to wear them out of stress, being tired, worrying about others more than themselves, not caring at the time, not thinking about the consequences etc. Common sense tells you not to breathe all that dust in, even if you thought it was just "dirt". While I'm not blaming the first responders, nobody had to lie to them. Go back to huffing bug spray with your armadillo hat.