We take a deeper look at the US prison population and its dramatic increase during the last quarter of the 20th century, and we ask the question "How did this happen?" Many experts argue that the rise in US incarceration rates is closely correlated with the War on Drugs. 

We take a brief look at the War on Drugs, and what led to it, as well as some data and statistics around drug use and crime rates during the 1970s and 80s.