Let's say roughly 1/3 Americans own an iphone [1]. So yes, wether you like them or not and weather it is legal or not, Apple's politics (and I think keeping information from US citizens about their militaries actions is bad politics) are important.

[1] probably not the best link, but probably close enough to the right answer http://wiki.answers.com/Q/What_percentage_of_Americans_own_a...