A great example of this are Japanese Americans. After Pearl Harbor, many Americans has irrational fears that Japanese Americans were spies and saboteurs. With these fears and racism, the Us government ordered over 100,000 of these citizens from the West Coast to internment camps. This was done with the previous mentioned factors, plus the fear of an imminent Japanese invasion of the West Coast.
State and Federal governments deal with bigger issues that is affecting a great amount of the population found within the economy and/or state, while local deals with problems within its community
In 1954, in the case of Brown v. Board of Education, the Supreme Court ruled that the constitution guarantees equal protection of the law and that segregated schools could never be equal... It is true.