So this was a lovely story from yesterday, which -- I don't know if you were just watching Leveson on the television but was on the news last night, of a stem cell break through, and the first proof in a safety trial that stem -- embryonic stem cells could actually be safe to give to humans, which is extraordinary in itself, it's a real break through, it's been a long time coming, but it was not an efficacy trial. It didn't test for whether these stem cells will cure blindness; it was just a first trial to check that the stem cells get to the place they're meant to get and are not rejected by the immune system.
As it happens, the two -- only two -- patients who have been given the treatment showed a tiny, tiny improvement in their sight, but that's not what it was testing for and those two patients may have shown that improvement totally by chance. Yet we wake up today to a headline which says "Once they were blind, now they see -- patients cured by stem cell miracle". No patients have been cured. It is not true that they were blind and now they see. This is just inaccurate.
I know that hundreds of thousands of people with (inaudible) degeneration who are blind will have been given false hope by this. We all hope that it will turn out like this in the end, but it has to --