Both the Fredmen’s Bureau and the Ku Klux Klan were eventually outlawed by the Congress because they were not satisfied with the black codes and were not willing to free the slave people.
Explanation:
During the early periods after the abolishment of slavery after the civil war black codes were created in the southern states to keep the blacks working for the white supremacy. Black codes were first created to eradicate the racial supremacy and then it eventually rose to power in the constitution.
The slaves who refused or made attempts to violate the laws were beaten hard and were made to work. This then eventually outlawed in the congress and it effectively continued in the southern states.
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The main reason why the Constitution granted Congress the power to create inferior courts is because of the system of federalism, which maintains that the federal government and the state governments will work together in matters of law.
The stress response is also called the fight-or-flight-response.
Although, when dealing with low level stress, nearly all of these are acceptable.
However, I'd say fight-or-flight.