Please read this before you subject yourself or your loved ones to invasive scans that could cause cancer. Obama's science czar John Holdren (who, by the way, advocated forced abortions and mass sterilization) apparently ignored warnings from radiation and cancer experts. The Administration was getting big donations from nudie-scan vendors, you see.
The best option is to not fly, and to write to your airlines telling them why. If you must fly, opt for the handjob.