Decriminalization of non-medical cannabis in the United States and federal prisons and an upwards of 750,000 in local jails for marijuana related crimes. Today there are over 1.5 million Americans serving time in an institution. If marijuana was decriminalized, these numbers were further be reduced again to below 700,000 inmates and save the taxpayers billions of dollars per year. The United States spends an estimated $68 billion per year on prisoners with a third of that number have been incarcerated for non-violent drug crimes including a sixth of those numbers as marijuana drug related offenses. A reduction in the prison population due to decriminalizing marijuana could save an
Gun violence in the United States killings account for 1 in 6 of all mass killings (26 killings annually would thus be equivalent to 26/6, 4 to 5, public killings per year). "Mother Jones" listed seven mass shootings, defined as indiscriminate rampages in public places resulting in four or more victims killed, in the U.S. for 2015. The average for the period 2011–2015 was about 5 a year. An analysis by Michael Bloomberg's gun violence prevention group, "Everytown for Gun Safety", identified 110 mass shootings, defined as shootings in which at least four people were murdered with a firearm, between January 2009 and July 2014; at