Final answer:
In the 1980s, the introduction and spread of methamphetamine (meth) in the U.S. was influenced by changes in drug policies, with the Comprehensive Crime Control Act of 1984, and the activities of criminal organizations such as motorcycle gangs and Mexican drug cartels.
Step-by-step explanation:
The question seems to be asking about influential figures or events related to the introduction and spread of methamphetamine (meth) use in the United States during the 1980s. It's important to note that the issue of drug distribution and abuse is complex, involving many factors such as legislation, societal trends, and criminal activities.
One pivotal event was the passage of the Comprehensive Crime Control Act of 1984, which included the Controlled Substances Penalties Amendments Act. This law increased the penalties for manufacturing and distributing narcotics, which affected the meth market. Moreover, motorcycle gangs initially, and later on more organized crime groups like Mexican drug cartels, played significant roles in manufacturing and distributing meth in the U.S.
Overall, drug policies, criminal organizations, and societal changes all heavily influenced the spread of methamphetamine during that period.