The federal Food and Drug Administration said Tuesday that it would take steps to more stringently regulate three of the most potent forms of medical radiation, including increasingly popular CT scans, some of which deliver the radiation equivalent of 400 chest X-rays.
With the announcement, the F.D.A. puts its regulatory muscle behind a growing movement to make life-saving medical radiation — both diagnostic and therapeutic — safer.



Authorities in France have placed more than a third of the country under a red heat...
An influenza outbreak has reportedly sickened more than 150 recruits in training at Lackland air force...
One morning early last July, Micha Bitsinnie arrived at work to an onslaught of messages from...





























