"Fuhrered" Eyes

"Hans Junior had the eyes of his father and the height. The silver in his eyes, however, wasn't warm, like Papa's - they had been Fuhrered" (103).
"Some of [the] soldiers were only boys. They had the Fuhrer in their eyes" (392).
I found it interesting that Zusak mentioned "Fuhrered" eyes in both of these places. He makes it clear who are, in a way, controlled by the Fuhrer and who isn't.
I thought that this was a foreshadow on how the Hubermanns have to be careful in who they help and make sure not to get caught. With the Fuhrer's eyes everywhere, the Hubermanns have to be cautious with Max in their basement because the Fuhrer is always watching.