Japanese Prime Minister Shinzo Abe has demanded the Islamic State group immediately release two hostages.Images of the hostages appear in a new video from the militant group. The video also showed an English speaking militant holding a knife. He identified th two hostages as Kenji Goto and Haruna Yakawa. The militant criticized Japan for,what he called,its "foolish" support for Western military efforts against the islamic State. He threatened to execute them if Japan does not pay the group 200 million.