Gilad exchange for video

If Israel will exchange 20 prisoners for a mere video, Hamas must be asking themselves how many prisoners they can get for a dead body. Are Israeli politicians that stupid to exchange prisoners for a useless video? Even if Gilad is alive today there is no guarantee that he will be alive tomorrow. The exchange should be Gilad for prisoners or Gilad for the targetted killing of a Hamas official. Gilad for a video is just a measure of the gullibilty of the Israelis.