Do you mean breathing the loose fibers while in enclosed spaces? Asbestos in a stable form is still one of the most cost effective fire retardant systems. Lawyers like Peter Angelos have made a fortune in product liability suits which cost consumers and taxpayers far more money than it has generated for the people who were exposed to asbestos.
If you are implying that years from now we may find out that over exposure to low levels of radiation over many years may turn out to have harmful effects, I won't argue that point. Please put down your cell phone, don't have any more medical x-rays including dental. Please don't get an MRI or CAT scan, and for goodness sake stay away from flying at commercial aviation altitudes. Who knows what all of the wifi radio waves will do. Maybe the genetically altered food or use of plastic for storing food will kill us.
At least you have a choice at the airport; get irradiated or groped. Your tax dollars at work.
How much fear should we respond to while going about our daily lives?
Be safe.