GREGG: There are many things about a home's condition that even a first-time home buyer naturally considers before the deed is signed. Water damage. Structural integrity. Faulty wiring. Cracks, stains and warping of surfaces. Faced with an already list of obvious and visible architectural flaws to look for, it's not surprising that something like air quality is rarely at the forefront of a homebuyer's mind. But it should be and radon is why.