I spent close to half of an hour (least ways it felt like that) doing dd re chest x-rays and CT scans re effectiveness, costs, relative dangers, etc. What I most wanted to know was what the costs were after insurance and what the relative safety factors were, as scans expose patients to tons more radiation than a simple x-ray. Regardless, there are not enough CT scanners out there (and won't be) to meet the demand as testing accelerates, as we can hope it will some day.