General Discussion
In reply to the discussion: “We need more police, we need more and tougher prison sentences ..." [View all]Sancho
(9,215 posts)the war on drugs, mandatory three strike laws, etc. are one reason for the number in prison, but there are other theories! Simply assuming there was a conspiracy to lock people up may be wrong!
One theory is that lead in paint and gas caused the crime increase:
http://www.motherjones.com/kevin-drum/2013/01/prison-population-dropping-can-you-guess-why
Keith Humphreys has a nomination for the most underreported public policy story of the past year: The continuing decline in the number of Americans who are behind bars or on probation/parole. Alex Tabarrok illustrates the trend with the chart on the right.
What's going on? At the risk of sounding like a broken record today, part of the answer is probably lead. Lead emissions rose throughout the 50s and 60s, leading to a rise in crime through the 70s and 80s. Incarceration rates went up dramatically during the high-crime years, and many of the people put behind bars served long sentences. So even though crime rates started to fall in the early 90s, incarceration rates kept going up for a while as new criminals were added to a system that already had a lot of long-term residents.