More than 40 years ago, the federal government launched a war on drugs. Over the past decade, the nation has spent hundreds of billions of dollars fighting that war, a figure that does not even include the high costs of prosecuting and jailing drug law offenders. It's hard to put a price on that aspect of the drug war since half of all inmates in federal prison today were busted for drugs.
Source: Rasmussen. Read full article. (link)