Actually, the phrase "national security" is barely used until the 1930s. And there's a reason. By then, the United States was beginning to become global. Before that the United States had been mostly a regional power - Britain was the biggest global power. After the Second World War, national security is everywhere, because we basically owned the world, so our security is threatened everywhere. Not just on our borders, but everywhere - so you have to have a thousand military bases around the world for "defense."
Noam ChomskyHamas is regularly described as 'Iranian-backed Hamas, which is dedicated to the destruction of Israel.' One will be hard put to find something like 'democratically elected Hamas, which has long been calling for a two-state settlement in accord with the international consensus'—blocked for over 30 years by the US and Israel. All true, but not a useful contribution to the Party Line, hence dispensable.
Noam ChomskyA property of an organism enters into its life (and survival) in many different ways, some more salient than others. But there is no simple notion of its being "for" some function.
Noam Chomsky