Backscatter units

Advanced Imaging Technology unit at John F. Kennedy International Airport's Terminal 8.  (Photo by Michael Nagle/Getty Images)

New Study Raises Concerns Over Full Body Scanners At Airports

A new study is raising concerns about the health risks of full body X-ray scanners as some 23 million people are expected to take to airports across the country next week for Thanksgiving.

11/18/2011