Here we go again
It uses magic and AI to scan every molecule coming over the border. It then identifies the recipient, sends a drone to their address, and murders their families. I have no references but just trust me because I argue a lot on forumsWhy do you keep making up this bullshit?
A six-position density scanner is precisely that. An xray scanner that measures the density of materials inside of a package from a bunch of different angles and generates a composite image. It can identify fuck-all at a molecular level. A vial of MCT oil is going to appear no different than a vial of Test C (in MCT oil).
Density is a clue to the contents, but by no means precise.