I think the issue of getting stem cell treatment overseas is currently a moot issue. So far it appears that the government is not going to ban stem cell treatment, nor fund it. Once Geron lets the treatment genie out of the bottle there is a zero chance that they'll ever ban it. With this in mind I don't see why leaving to country to get ESC treatment is an issue. As far as I know, ESC treatment is not available anywhere right now, but when it is, there's no reason to assume that it won't be available in the U.S. Unless such circumstances arise there's not much point in talking about them, but if you do want to raise an hypothetical one, if an insurance company has the choice of paying over $100,000 for open heart surgery or flying someone over to Japan to get a stem cell treatment for a fraction of the cost, the insurance companies might see an incentive to pay for the lower cost treatment, after all, less they pay out, the more money they make.