The Government is denying it, considering the laws in place preventing the US Military from conducting operations on United States soil. However, if this is the case, I don’t think I have a whole lot of problem with it. We are in a very unconventional war at this moment, and should use every tool at our disposal.
The does, however, have to be some safeguards. I don’t think it would be a good idea, for example, for a spy network to just start listening to everything. (Which, in my opinion, is a virtual impossibility in the first place. Look at all the phone calls, internet posts, and such that go on every second of every day. Just trying to grab all of it, let alone sort it all out, would require endless manpower and computer power, and would probably still miss important items until it’s too late.) There should be a specific threat, some hard intel, on what they are looking for, and coordinate with the proper authorities.
As long as they are doing it according to the laws, happy hunting!