CIA and US army objectives are to go after terrorists. Hez, hamas, al qada's (all supported by iran in one way or another) main objective is to go after civilians. Also, americans can never be classified as terrorists. Show me anyone who thinks americans are terrorists and i'll show you a muslim. No other group would think that.
FBI: Islamic State sympathizer charged in backpack bomb plot (AP)
from the article: Iran's parliament approves labeling CIA, U.S. Army terrorist groups