"So this is very good news for the field, " he said, noting the number of patients who have had successful bowel transplants is very small because of difficulty in achieving stable, long-term acceptance of that organ.

NPR: 5-Organ Transplant Patient Gives Birth: Baby Girl

Not informing passengers about scanners can open the door to misinformation and critics, the study's authors said, and hurt the long-term acceptance and legitimacy of airport security.

CNN: How much do we really hate the TSA?