Radley Balko lists examples of violence related to the drug war. Among other bloody incidents:
The United States has a long history of turning a blind eye to human-rights abuses and unintended consequences in the name of eradicating illicit drugs overseas. Between 2001 and 2003, the United States gave more than $12 million to Thailand for drug interdiction efforts. Over 10 months in 2003, the Thai government sent out anti-drug “death squads” to carry out the extra-judicial executions of as many as 4,000 suspected drug offenders. Many were later found to have had nothing to do with the drug trade. Though the U.S. State Department denounced the killings, the United States still continued to give the same Thai regime millions in aid for counternarcotics operations with little control over how that money was spent.
Chris Ladd likewise wants to end the war on drugs.