No one in “authority” will ever acknowledge. By the fruits of the labor it will be known. For fun and games— take a look at the basket case that is now Schiff squealing running and hiding in narrative.
They exist.
If the existed, and can not be used, are they of any use, and is there any point of treating them as a silver bullet?
If they exist, is there any evidence of them being used by the President's team, and any evidence of counter action taken?