Final answer:
National research and data indicate African Americans are arrested for marijuana possession at higher rates than whites, which suggests a larger issue of racially disproportionate enforcement of drug laws rather than actual usage rates.
Step-by-step explanation:
The question is asking which drug national research suggests African Americans use more than whites. Based on U.S. Census and FBI data, it was revealed that blacks in the United States are between two to eight times more likely than whites to be arrested for possession of marijuana. This disparity has contributed to a broader recognition of uneven enforcement of drug laws and has influenced movements towards the decriminalization and legalization of marijuana.
Historically, African Americans faced stiffer penalties and harsher laws, such as three strikes laws, particularly during the 1980s when drugs like crack cocaine saw a surge in usage among lower-income and minority communities. This disproportionate impact extended beyond drug laws to a broader range of social and economic hardships, underlining the systemic nature of these disparities. However, it's important to note that while arrest rates are higher for marijuana among African Americans, this doesn't necessarily equate to higher usage rates but may reflect enforcement practices.