Radon, is as you say, the second leading cause of lung cancer in the U.S. Nationally one in fifteen homes are affected. In Minnesota, the Department of Health recently issued an alert that one in three homes have abnormal levels of radon. This translates into one in a hundred Minnesotans developing lung cancer from this entirely avoidable cause. The costs you mention above seem quite trivial in that light! Thanks for raising awareness!!

Lynne Eldridge M.D.
Author, “Avoiding Cancer One Day At A Time, practical advice for preventing cancer”
http://www.avoidcancernow.com