By MissMJ [CC-BY-3.0], via Wikimedia Commons
Answer: It’s too early to say. We don’t know enough yet about what the OPERA result would mean if it’s true. For example, some people think there’s a force field in the neighborhood of the Earth that is causing this effect, and that neutrinos would not seem to go faster than light in free space. In that case, no fundamental modification of the standard model would be necessary. Whatever happens, though, we know that the standard model, and the theory of relativity on which it is based, work extremely well, and we will not be throwing them away even if neutrinos go faster than light. We will learn something new and may have to make small changes. But time will tell.