Senate Caucus on International Narcotics Hearing on Counternarcotics in Afghanistan The Senate Caucus on International Narcotics Control held a hearing on counternarcotics operations in Afghanistan. The country is one of the biggest producers of opium and heroin. Proceeds from drug sales have traditionally been a major source of funding for the Taliban. www.c-span.org/Events/Senate-Caucus-on-International-Narcotics-Hearing-on-Counternarcotics-in-Afghanistan/10737423002/