Earlier quoted context omitted.
The drug war is part of it. But the big thing to fix is income inequality. High income inequality is correlated with higher homicide rate, higher robbery rate, lower civic participation, higher mortality, lower social cohesion and lower well-being in children. So many social problems are strongly predicted by this variable, yet many refuse to consider inequality to be a problem. http://en.wikipedia.org/wiki/Economic_…
Many consider inequality a symptom/consequence of one's own chosen behavior, not a cause. (ETA "chosen behavior" clause.)
Inequality starts from inequality of opportunities.