What concerns about the Cold War does Kennedy express in his speech?

Senator John F. Kennedy and Vice President Richard M. Nixon both pledged to strengthen American military forces and promised a tough stance against the Soviet Union and international communism.

Explanation:

Escaped slaves not protected by the government because of the rules in the South, which forced them to return to their masters if found.

Explanation:

Southerners defended slavery as they were part of the South economy. Slaves worked in plantations as labours and household as servants. Harriett Tubman played a significant role in helping escaped slave in the Northern states after becoming active in the Underground Railroad as a conductor. Runaway slaves who had fled with the Underground Railroad into north states not shielded by law and could be rightfully returned to their southern slave owners if discovered.