Hugo Black,
Pennsylvania Railroad Company v…
“ The privilege is not a badge or emolument of exalted office, but an expression of a policy designed to aid in the effective functioning of government. The complexities and magnitude of governmental activity have become so great that there must of necessity be a delegation and redelegation of authority as to many functions, and we cannot say that these functions become less important simply because they are exercised by officers of lower rank in the executive hierarchy. ”
