Introduction: In this speech I will be talking about what is and what its affects are , and should be legalized or not? I. Maijuana is a drug from dried up parts of the hemp plant cannibis. isn't a narcotic. cancause hollusinations and slows down the cardination and impared ability to preform skilled acts. In 4,000 years of history no one has ever died from a pot over dose. II. I think that marijuana should be legalized for many reasons. Another reason is because if marijuana was legalized our jails wouldn't get full becauseof all th ....