I don't want the NSA to become a defensive organization. I like that Iran's nuclear program is being delayed. That's not a defensive action.
You don't seem to be proposing that the NSA become defensive, either. If Russia attacks us and we don't respond, that's not even defensive. That's dismantling.
You don't seem to be proposing that the NSA become defensive, either. If Russia attacks us and we don't respond, that's not even defensive. That's dismantling.