You can read more about it in the supplementary material (which sadly may be pay walled). I'm not qualified to judge. It certainly sounds like adequate safeguar

You can read more about it in the supplementary material (which sadly may be pay walled). I'm not qualified to judge. It certainly sounds like adequate safeguards: fully redundant systems, access controls, air locks (or whatever they call them, I'm doing his from memory on the go). It is hard to read the description and come away thinking they were reckless.