For such a mainstream epic I thought it was rather critical of US politics around that era. They mentioned that the Truman administration lied about the Japanese never surrending and that the nukes on Nagasaki and Hiroshima were unnecessary to end the war. The red scare isn't painted in a particular good light either, especially where Katherine Oppenheimer is cross-examined and tells them that he simply supported refugees instead of evil communist tyrants and that the insinuation of supporting communists was more of a tool of the ruling elite to control people who didn't parrot the party line.