Americas Longest War: A Film About Drug Prohibitionselfnews Post Worst of all, drug prohibition has failed. Drug usage rates have not declined and illegal drugs are more available and cheaper than ever before. At the same time, the costs of the drug war are staggering. More than one trillion dollars have been spent, and a prison-industrial complex continues filling itself to capacity creating a whirlwind of violence in its wake. A new feature-length documentary (trailer posted below) examines the history and ongoing threat of Americas longest war. 