What is a summary of A People's History of the United States, chapter 9? How does it describe the evolution of slavery?

Zinn begins this
chapter by discussing the
government's protection of slavery, as cotton was such a profitable
crop. He
writes that only a rebellion could destroy the system of slavery before the Civil
War.
However, the process of Reconstruction that ended slavery was not truly
revolutionary but was a
safe form of emancipation that maintained the white
power structure.

Zinn
examines the brutality of slavery,
in part caused by the owners' fear of revolts. He discusses
the evolution of
slavery as an outgrowth of the need for labor to cultivate the crops planted
in
the south. Slaves found ways to resist slavery that were not outright
revolts, and owners used
religion to tighten their grip on their slaves.
However, slaves found a religion that offered
forms of escape from
slavery.

To end the system of slavery, freed blacks

united with white abolitionists, who had their own forms of racism. The means of
overthrowing
slavery was not a revolt but a process controlled by white
Northern business...