[USA] Report Highlights OFAC’s Success in Combating Narcotics Traffickers / US. Department of the Treasury, 4 May 2007
http://www.treas.gov/press/releases/hp390.htm
"The US Department of the Treasury's Office of Foreign Assets Control (OFAC) today released the Impact Report on Economic Sanctions Against Colombian Drug Cartels, which reviews OFAC's highly effective efforts to expose and isolate significant Colombian narcotics traffickers and their associates and to disrupt and dismantle their business empires."

Full report:
PDF - http://digbig.com/4swet