On the day that California's Governor Jerry Brown asks federal judges to lift an order to release prisoners to reduce overcrowding, this brief clip seemed extremely appropriate when considering just why it is that the US prison population is so high (as we noted most recently here). Professor Daniel D'Amico provides some insightful color, noting that fully 24 percent of inmates in U.S. prisons are non-violent drug offenders. The drug war has been adding to a growing U.S. prison population for the past 40 years. Today, the United States holds more human beings in prisons than any other country, both as a percentage of the population and in counting total numbers. The war on drugs has led to significant increases in the U.S. prison population and he argues that perhaps this is an ineffective way to address drug use in America. An interesting dilemma on the day when another 'freedom', that of gun ownership, is up for potential prohibition.