To put this in perspective, the neutrinos are being sent over a distance of 730Km and arrive 6e-8 seconds earlier than expected. This is the equivalent time it takes for light to travel 2 metres. This is a small discrepancy but I understand their instruments can resolve down to 20cm.
Charles
PS: Neutrinos are known for breaking the light-barrier in a dense medium (detected in water)
http://en.wikipedia.org/wiki/Cherenkov_radiation
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