Actually, I read on another thread that Hamas was probably fully involved in it and knew the kidnapper, who has a long terrorist track record; furthermore, supposedly ransom was paid for them, through the UK. I don't know if this is true, but it would seem, from what they said, that the "three concessions" would have been letting the kidnapper go free, paying the ransom, and having the reporters declare their conversion to Islam.
Far below the demands to 'release ALL Muslims from prisons', thank goodness.