Last chapter, Noah sat by quietly while his dad went on a maniacal (and very long) rant about how he's going to help a cabal of government officials seize power and reshape the country to their liking. 

You would expect his reaction to this to be something like "Holy shit my dad has lost his god damn mind, Jesus Christ what the fuck I've got to tell someone about this", followed by a bout of hyper-ventilating and hysterical crying. Instead, he just seems vaguely confused and ill at ease.