"In 2005, the federal government spent $2.6 billion to disrupt and deter the transport of illicit drugs into the United States. While international efforts to step up drug seizures may affect availability, price and consequences associated with a particular drug (i.e., cocaine or heroin), CASA was unable to find evidence that such strategies have an overall impact on reducing substance abuse and addiction or its costs to government."
Source
National Center on Addiction and Substance Abuse at Columbia University. Shoveling Up II: The Impact of Substance Abuse on State Budgets. New York, NY: CASA, May 2009.
