21.   ADDS detail about endurance limits in space,

22.   ADDS detail on stadium reportedly oversold.

23.   ADDS details of Hashimoto letter.

24.   ADDS details of visit throughout, Blair quotes,

25.   ADDS details on plane,

26.   Adds details, edits and trims throughout.

27.   ADDS new details,

28.   ADDS detail,

29.   ADDS details throughout, byline.