"The drug trade is a powerful corrosive that weakens the rule of law in affected countries, preventing governments from effectively reducing or containing other transnational hazards, such as terrorism, insurgency, organized crime, weapons trafficking, money laundering, human trafficking, and piracy. For DoD, the clear linkages between international narcotics trafficking and international terrorism constitute a threat to the national security interests of the U.S."
-- FY 2009 Supplemental Request, Drug Interdiction and Counterdrug Activities