Since this is a secure line, I can tell you that the CIA will have Hillie carry some secret audio and video recording/transmitting devises. If they allow her to visit certain secure areas, she'll be able to plant these transmitters. If all really goes well, she'll be able to plant a voice activated transmitter in Kim's office that should have a life span of about 6 months. She will take at least two aides with her who will also plant devises including radiation counters. The Commies will never suspect that a kindred spirit is actually working for the CIA!
Perhaps Hillary could discreetly implant a tracking device in Kim Jong-Il, via the Lewinsky method.