Consequently, the wire, like the reception desk in the Devil Wears Prada, can never be unmanned. This means you have to schedule agents around the clock, 7 days a week. Not just one guy per shift either. Also, judges usually require at least monthly
This is why agents will sometimes resort to creating some event that they believe will motivate the Target to make a call.
Sometimes, you have the right target, but the wrong device and the target has another phone or a burner phone that you don't know the # for.
My point being, if that [those?] tap[s?] were not producing actionable information
My other point is this YEAR LONG wiretap surveillance effort was a huge commitment of manpower and the FBI would have shut it down itself unless it was providing