I cannot tell you just how relieved I am that I am retired now, after flying for over 42 years, that they have just now discovered this dark lightening stuff.
Would hate to think that I had been exposed to all that radiation back when I did fly, probably be dead by now if that stuff had been around when I was flying. Most likely would had died from radiation before I could have flown 20 years.
For those of you that do not understand sarcasm, feel free to look it up.