What boundaries can't do — and what they can do

Boundaries, such as locks or fences or walls, are widely used as protective measures. However, some people argue that such measures are ineffective, because there will always be bad people—people with criminal minds—who will find ways to pick locks, break fences, or scale walls. There’s truth to their argument; that’s why a well-developed society does not expect order to be maintained solely through physical boundaries; it also establishes a robust law enforcement system to discipline criminals. 

Full article is here: What boundaries can't do — and what they can do

Audio explanation of the article is below: