War on Moisture

A women was told she couldn't fly with her prosthetic breast because it was a security risk. And then she was allowed to. Which was the worse decision, the "no" or the "yes"? And which criteria, or changes in circumstance, allowed the "no" to change to a "yes"? Perhaps they waited to see if another gel breast turned up on another passenger with which to make the two-liquid bomb?

But wait, aren't humans about 98% moisture? And humans are still allowed on aeroplanes. Could two humans alter the moisture content of their bodies such that if they exchanged bodily fluids, there would be a mile-high club bang?