Kasasibah if they do not get the prisoner Sajida Al Rishawi back. Cnn cannot verify the authenticity of the recording. Jordans government says it is willing to make a prisoner swap. There may be hope for the hostages. I want to bring in cnns will ripley live in tokyo. Will you have been covering this since the beginning. The japanese envoy has been there for days. What is the status of the current negotiations . Reporter all updates on the japanese side are coming from tokyo. It has been very quiet today as far as public comment. We are being told behind the scenes there have been feverish discussions about how to make this Prisoner Exchange happen. Kenji goto the japanese journalist who has survived the hostage crisis for more than a week appeared in several propaganda videos by isis. The latest message, an audio claiming to be his voice. The government doesnt have any reason to believe it is not his voice. He says if this prisoner swap doesnt happen by sunset which is some four and a