"I will say that NSA spying isn't necessarily incompatible with a libertarian government."
I would believe it is against the very definition of libertarianism as a belief and not any political party with libertarian in its name. Taken from Wikipedia:
"Libertarianism (Latin: liber, "free")[1] is a set of related political philosophies that uphold liberty as the highest political end.[2][3] This includes emphasis on the primacy of individual liberty,[4][5] political freedom, and voluntary association. It is the antonym to authoritarianism.[6] Libertarians advocate a society with a greatly reduced state or no state at all.[7]"
I would believe it is against the very definition of libertarianism as a belief and not any political party with libertarian in its name. Taken from Wikipedia:
"Libertarianism (Latin: liber, "free")[1] is a set of related political philosophies that uphold liberty as the highest political end.[2][3] This includes emphasis on the primacy of individual liberty,[4][5] political freedom, and voluntary association. It is the antonym to authoritarianism.[6] Libertarians advocate a society with a greatly reduced state or no state at all.[7]"
http://en.wikipedia.org/wiki/Libertarianism