Yes. Do you suppose the role of an intelligence organization is to spy on its allies? How much of an ally can they really be if we spy on them like we do our enemies? The role of the NSA is not (or should not be) to spy on everyone. Spying is not a friendly activity. Spying is fundamentally a hostile activity and subjecting our allies to hostile activity will quickly result in a loss of allies.
Would you be friendly with someone who was spying on you?