Prohibition in the United States
Research shows that prohibition reduced overall alcohol consumption by half during the 1920s, and consumption remained below pre-Prohibition levels until the 1940s, suggesting that Prohibition did socialize a significant proportion of the population in temperate habits, at least temporarily. Rates of liver cirrhosis "fell by 50% early in Prohibition and recovered promptly after Repeal in 1933." Criticism remains that Prohibition led to unintended consequences such as a century of Prohibition-influenced legislation and the growth of urban crime organizations, though some scholars have argued that violent crime did not increase dramatically, while others have argued that crime during the Prohibition era was properly attributed to increased urbanization, rather than the criminalization of alcohol use. As an experiment it lost supporters every year, and lost tax revenue that governments needed when the Great Depression began in 1929.
Mexican Drug War
Due to its location, Mexico has long been used as a staging and transshipment point for narcotics and contraband between Latin America and U.S. markets. Mexican bootleggers supplied alcohol to the United States gangsters throughout the duration of the Prohibition in the United States, and the onset of the illegal drug trade with the U.S. began when the prohibition came to an end in 1933. Towards the end of the 1960s, Mexican narcotic smugglers started to smuggle drugs on a major scale.