John, That was the perfect article for this thread. It shows the political side, the economic side, and nothing from the scientific side. That's why Caoimhin's points are important. Radon is real. Alpha, beta and gamma radiation are real. The danger is real. But the science is not there yet to intelligently conclude action levelsid="blue">. Until the science is there, all we can have is emotional debate. "Well, we know it's bad, so I want it all gone!" "Oh, come on, that much won't hurt anyone." "Oh, yeah???" "Yeah."