I don't think moving random manufactured products from point A to point B should be considered "particularly security intensive". This is just basic commerce and logistics.
Some of the largest battles of World War II involved nothing more substantial than moving goods from point A to point B, or stopping the other country from moving their goods from point A to point B.
Logistics is the lifeblood of society and cannot be taken for granted even in a civilian sphere.
It used to be bandits raiding caravans, and now it's criminals raiding trains, front porches, etc.