Answer: Keeping Americans safe from other Americans
Explanation:
In 1954 the Supreme Court ruled that segregation in public schools was against the Constitution and so the NAACP went ahead to enrol certain black students in previously white only schools.
One of the places they did this was in Little Rock, Arkansas. There was a lot of opposition to the children attending school and the Governor of Arkansas called in the National Guard to prevent the children attending.
President Eisenhower then sent in Federal troops and federalized the Arkansas National Guard and charged them with protecting the black children and ensuring that they attend. The National Guard therefore protected the children and in doing so protected Americans from other Americans.
It was xoined by Winston Churchill who described the Berlin wall that seperated east germany from west germany not allowing any citizen in the communist countires to escape and leave their tyrannical overlords for the free west.
The appropriate response is yes. The enhanced relations between the Soviet Union and China; upgraded Nixon's reality picture; opened up political and monetary relations with the Chinese.