The high price of enforcing criminal penalties on non-violent offenders has Georgia's new Republican governor rethinking a major linchpin in US domestic policy: the drug war. Roughly 19 percent of Georgia's prison population was incarcerated on drug offenses in 2009, according to a report by the Office on National Drug Control Policy. Nationally, nearly half of all arrests are due to laws criminalizing the cultivation, sales and use of cannabis, which has been shown to be less damaging to human health than alcohol or tobacco.