Not necessarily ‘foreign’.
If you are of the mind that laws do not apply to you..................
It is legal to intercept communications of an American citizen without a warrant if they intercept it at the end that is on foreign soil. That means the NSA tapped the foreign receiver of the call or email.
-PJ
I would rephrase the question: “WAS there a wire tap?” or something like. If they answer, I don't know then they might be lying because US intelligence agencies know when a recording is being made.
Reminds me of the old game show — Whats My Line. The answers were yes or no and the questions were designed to narrow down to and get to the truth. But the contestant never gave a full answer so as to mislead.