It was looking a bit bleak for Mr Einstein. The OPERA group at Gran Sasso laboratory had reviewed and refined their September observations and reported that the CERN neutrinos were still travelling faster than the speed of light. However a further experiment, also at Gran Sasso, called ICARUS captured some of the neutrinos and measured their energy rather than journey time. According to theory, any neutrinos that were at superluminal velocity would have to be emitting radiation and thus losing energy. The ICARUS group found no evidence of radiation as the neutrinos arrived with the same energy as they left. The inference thus being that they cannot have been travelling faster that light.
Gioachino Rossini wrote Italian comic operas, however I don't recall one about flying Greeks. But as has often been said about Brünnhilde's final aria from Götterdämmerung, it ain't over 'til the fat lady sings. There is more to come.