But the problem here is that Mars One itself isn't aware of the full risks involved. It took an outside agency to point out flaws in their plans, to which they responded: "nuh uh." That's a problem that will only get worse over time. If they're incapable of conducting a full risk analysis on what can go wrong, then there's no way the volunteers can ever have that full knowledge either. NASA and ESA can assist, and I believe that NASA is certainly interested in assisting, they can't know more about the Mars One plan than Mars One does. It's one thing if you decide to fly with my airline knowing full well it's a one way trip to Asia with a 45% chance of arrival. I told you where we were going, that I had a significant chance of failure to arrive, and that I was only going one way. But it's a completely different story if I tell you about the above but withhold (or don't know myself) that our arrival destination is in the Gobi desert and all I have for supplies is a Capri Sun and half a Big Mac.