Heroin Crisis

Heroin Crisis

S1 E5: Heroin is one of the most addictive drugs on earth. Stronger, purer and easier to get than ever before. The newest forms of heroin can be snorted or smoked--rather than injected--attracting millions of new users. National Geographic investigates how the war in Afghanistan has inadvertently unleashed a deluge of heroin, feeding addicts from Kabul to Europe to America's heartland.