The point is that we have been listening to them gathering information. We are not allowed to give out this information because
A) NATO is not suppose to be acting like an agent of the US. They are an impartial world advisor.

We give up this info then our source of info will dry up. If they realize we can here their calls and hear them laughing at NATO, they will shut up. Then our info dries up. (No more naked neighbors)
Now that we are about to blow the shit out of them it really doesn\'t matter. Plus we have probably so much info now that we don\'t care if this source dries up..
This is as elementary as I can get. Sorry.