doctors fail to follow proper safety procedures, it results in suffering worse than the ailments radiation aims to cure. Overuse of radiation presents substantial harm. In the last decade, the number of CT scans in the United States has tripled, including CT scans of children. One study concluded that of the 72 million CT scans performed in 2007 alone, an estimated 29,000 future cancers and 14,500 future deaths could develop due to radiation exposure. A litany of horror stories underscores the consequences when hospitals fail to provide safe radiation treatment to cancer patients. In many of these horror stories, poor software design, poor human-machine interfaces, and lack of proper training are root causes of the problems.