Shephard Smith on Fox reports that the FBI can listen even when phone is turned off:
...and you guys are only discovering this now?
Guess what guys? ...they can do that with your landline home telephone as well, ...even when it's hung up,
...they can hear everything said in the room. They can do it by pointing a beam at your window to measure the vibrations coming off the glass. There is no longer any such thing as privacy. They can probably even tell you what you ate for lunch.