Dunno! I see it more as symbolism possibly relating to the phases of the moon. With the rarity of the lunar and solar eclipses during this rama-dama-ding-dong thingy it tends to make the rays more able to penetrate even the thickest tin foil headgear.
What really bothers me is the pic with the scuba diver. That is so odd compared to the usual OBL propaganda pics. Maybe there really is something to the earlier reports of scuba attacks; or maybe AQ or some nut is just picking up on this stuff and floating it around to see how folks react to it.
< sarc>
Since it isn't the lead story on the alphabet channels this doesn't yet qualify as a potential terrorist threat. After something happens it'll be all over the headlines that the "dots were not connected."
< /sarc>