A local mall was shut down and refurbished due to asbestos insulation being discovered. I was there talking with one of the guys in the company that was doing the removal...don't really remember why I was there talking to him...
Don't know how true this is, but he was telling me that there's more asbestos in the air in one day in any busy city (from car and truck brakes and clutches primarily) than there would be in that mall in 10 years. He seemed to think it was mostly ridiculous, but didn't mind taking people's money to remove it. However, I do know of one famliy who lost their livelihood because the icecream store they owned in the mall was forced out of business due to the mall being shut down.