Well, no one (to my knowledge) who has been injected with a US or European test vaccine has turned into the Undead or a werewolf or suffered any major catastrophic effect, so I don't think it is wrong to say that there is a fairly high degree of confidence that the vaccine will be safe and effective. But I concur that the Phase III trial needs to be undertaken to confirm that. I also agree with you that some rare or latent effects may not turn up until years later. That's why many of these vaccines take many many years to test before they are released. We just don't have that kind of time, in this case, to wait.