THE ID CON b. Testing
If you wanted to "brand" or "virally impregnate" someone by implanting a clandestine, genetically engineered bio-weapon via the mucus membrane or the Brain, as well as nano particles or a nana- chip, this would be the perfect place to do it.
As the perfect secondary vector for whatever else they wanted to implant, this method is ideal because of its almost immediate access to the brain, with practically no hope of removal.
Yea there's no agenda.