Looks like a hardware error
The claim that a neutrino beam traveled faster than light appears to have been undone by problems in the hardware involved. A faulty connection between a hardware board and a fiber-optic cable may have introduced a timing error. Interestingly, it's not clear how much error, and in which direction. More experiments are planned to nail it down, but the possibility of a conventional explanation for an Earth-shaking finding looks likely to be true. Darn.