a bit on the topic of what Ralph Sir Edward(if I follow right. bit beyond my knowage of the subject at hand.) was talking about I saw I think on nova about them slowing down light to the speed of a bike. using a supercooled gas that made into a Bose–Einstein condensate
http://en.wikipedia.org/wiki/Bose%E2...ein_condensate
think that nova is on hulu right now. it the one on the speed of light or the one on cold can remeber.
also I have seen some papers have not look how that is passable yet faster then c (while I was looking up the ref to slowing light so dont know if that right dont have the time now to look agin)
think im restating things but im to illinform to tell if that is the case.