The Radium Girls were so contaminated that if you stood over their graves today with a Geiger counter, the radiation levels would still cause the needles to jump more than 80 years later. They were small-town girls from New Jersey who had been hired by a local factory to paint the clock faces of luminous watches, the latest new army gadget used by American soldiers. The women were told that the glow-in-the-dark radioactive paint was harmless, and so they painted 250 dials a day, licking their brushes every few strokes with their lips and tongue to give them a fine point.