First of all, I don't intend to blow this out of proportion. This is a MINOR incident and it is not even worth mentioning if we simply consider the amount. But since it in the news, I'll report it here.
Having seen previously how the hysterics of something like this can create a public relations nightmare (see Brookhaven's High Flux Beam Reactor), I hope that this doesn't get the same type of attention. If this were to happen at a US National Lab, it would have been a major pain in the rear end for all those involved.