Too many rumours verging on gossip, and too much speculation going beyond the known facts. Maybe these were indeed suicide bombers, maybe they were bombers disposed of by their handlers, maybe they weren't bombers at all, but couriers with no idea what they were carrying.

No doubt in time evidence on which it would be possible to judge those those kind of things will will come out. But right now we haven't got it, and nor have the people speculating away in the media. There's something rather unsavoury about it all, it seems to me.