I'm figuring this belongs in quantum - sounds like a quantum effect. http://www.opticsinfobase.org/abstract.cfm?id=63756 (my emph) There's lots of papers like this ... also been in the blogosphere: Sounds like some people are claiming to have done it for real: http://scienceblog.com/light.html [Broken] These are representative samples from the less crazy end of the spectrum. I could imagine the leading-edge of a wave-function faster than c so long as the group velocity was less. So I'm betting there is some crucial info left out which makes the result more sensational sounding than it should be. What did I miss?