Ok this story is missing some VERY IMPORTANT information. Like the fact it does not mention any abnormal incidents in that county or State of Cancer. Nor of any other health problem. http://news.yahoo.com/s/ap/20080405/ap_on_re_us/unhealthy_gravel It has been used for years yet no one has noted any abnormal ( or at least the reporter failed to note such an important fact) cases of any diseases or conditions. A sure sign that there might be a problem.