If you're flying somewhere, and the TSA at the airport is using full-body scanning, it's hard not to have at least a passing thought about the radiation exposure. The exposure may be zero if millimeter-wave scanners are being used. But even if the scans are done with the backscatter scanners, the exposure is so minimal — far lower than the radiation exposure during the flight — most people will decide that they have more important things to worry about.
To continue reading this article, you must login
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.