I need help with this: Some historians have defined the historical period of the 1960s and 1970s as a watershed moment in US history because it represents critical change. The emergence of movements for equality, a well-organized political activist youth culture, and a counterculture that rebelled against established norms in society are all factors that highlight this change. Is there a single person or event you think exemplifies the changing US society of the 1960s and 1970s? Explain your choice and why you chose it. Or, explain why you think no single person or event exemplifies this period. Then, name an event that you think illustrates the changing perceptions of authority within the United States in the 1960s and 1970s and explain your reasoning.