What are Howard Zinn's criticisms of traditional interpretations (like Samuel Eliot Morison's) of this period?

Zinn
claims that traditional interpretations of Columbus's encounters in the "New World" do
not sufficiently grapple with the horrific consequences of these encounters, which were the
result of deliberate policy. Writing specifically about Morison's book Christopher
Columbus, Mariner, Zinn observes that Morison hardly lies about the past. In fact,
Morison uses the word "genocide" to describe the effects of Columbus's actions on the
Arawaks and other Indigenous Americans. But this admission, Zinn argues, is "buried . . .
[in] the telling of a grand romance." Overall, Morison characterizes Columbus as a
"Christ-bearer," a brilliant and intrepid sailor whose exploits led to the creation of
a new world.

Zinn's contention is that Morison ultimately argues that the
genocide of the Native peoples was an unfortunate consequence of Columbus's actions. In doing
so, Morison, to...