The fiction behind this piece is that the country is run by an oppressive totaltarian government. To ensure order and to prevent rebelion, every person that turns fifteen will recieve a Watcher. The Watcher will be with them 24/7, always watching and listening for any sighns of insubordination. If rebelious words or behavior are detected, the android will evicerate it's charge on the spot to make an example, then the droid is re-encoded to a new charge. The robot is made of a melal alloy known as bio-steel. Basically, the programming is fed directly into the metal. The machine is given basic Algorithms to understand what lying is and what the government considers insubordinate behavior. However, the robot also has algorithms that allow it to learn when its individual charge is lying because everyone lies differently. That makes re-encoding extraordinarily similar to brain washing.