International Drug Control Policy: Background and U.S. Responses [January 14, 2013] [open pdf - 553KB]
"The global illegal drug trade represents a multi-dimensional challenge that has implications for U.S. national interests as well as the international community. Common illegal drugs trafficked internationally include cocaine, heroin, and methamphetamine. According to the U.S. intelligence community, international drug trafficking can undermine political and regional stability and bolster the role and capabilities of transnational criminal organizations in the drug trade. Key regions of concern include Latin America and Afghanistan, which are focal points in U.S. efforts to combat the production and transit of cocaine and heroin, respectively. Drug use and addiction have the potential to negatively affect the social fabric of communities, hinder economic development, and place an additional burden on national public health infrastructures. […] Congress has been involved in all aspects of U.S. international drug control policy, regularly appropriating funds for counterdrug initiatives, as well as conducting oversight activities on federal counterdrug programs and the scope of agency authorities and other counterdrug policies. For FY2013, the Administration has requested from Congress approximately $25.6 billion for all federal drug control programs, of which $2 billion is requested for international programs, including civilian and military U.S. foreign assistance. An additional $3.7 billion is requested for interdiction programs related to intercepting and disrupting foreign drug shipments en route to the United States."
CRS Report for Congress, RL34543