Himmler's solemn recital of the mantra "He alone who owns the youth, gains the future" is a direct quotation from Adolf Hitler.
"The New Colossus" refers to the sonnet inscribed on the pedestal of the Statue of Liberty. This episode also shares its name with an entry in the Wolfenstein video game series, which also centers on a post WWII America under Nazi tyranny.
According to Rufus Sewell, the scene in which John is confronted by Reichsmarshall Rockwell, while Himmler and Hoover look on, was difficult to play. He had to moderate his reactions in the moment, his response could not be a straight-forward reply to Rockwell's accusations.
The photographs of the pre-Reich landmarks to be destroyed are labelled in German - Der Rushmore Berg (Mount Rushmore), Halle der Unabhangigkeit (Independence Hall), Die Freiheitsglocke (Liberty Bell), Der Alamo (The Alamo), Die Freiheitsstatue (Statue of Liberty).
Female homosexuality would not have been viewed as being as transgressive as male homosexuality in the Greater Nazi Reich. However, it was still a punishable offense.