Re: At last
The fact that they got ANY result from the control shows that they had a problem of SOME sort. And unless they repeated both experiment and control, each set up again from scratch each time, and the results from each were similar each time (but different between control and experiment), it could simply be that the instrumentation problem was weaker on one occasion than the other.
I'm with others on this. I'd love it to be verified - it would not only be potentially revolutionary, but throw a spanner in the works of current orthodoxy - rarely a bad thing. But frankly this feels a lot like cold fusion did when it was first trumpeted. Sorry - exceptional claims (apparent violation of conservation laws) require exceptional evidence, and I'd say the jury is still decidedly out.