He shows both the light and dark sides of our nation, both it's unity while celebrating diversity, and the divisions made by those who do not. "This nation could easily have been declared ally buy an entire race of people – kidnapped and enslaved, separated out and hunt it down. Instead King and his movement termed a broken promise, one that the people on the receiving end of the breach took actions to mend.
The Red Scare? If you list the options, then it would be clearer, but it should be anything dealing with the USSR and US due to McCarthy’s rise in power of knowing communist spies