> "NSA is a intelligence agency: spying on foreigners seems to me like it'd be their objective, regardless of the revelations ... Other foreign intelligence agencies do their share of spying on foreigners too"

I don't know why we should find this more acceptable, whether NSA or foreign agencies. If it is supposed to be acceptable, than give every single person even greater power of surveillance of powerful government/corporate entities and their agents, given their power, they are more likely to do serious harm when unaccountable.