Re your comment on insurance, I am not sure exactly what you were thinking but is this a hint of the wind of future change with the massive potential increase in treatment costs.
Human nature/ the market place v equal treatment for all - which will win I know in the long term on the balance of probabilities which is the more likely.
RB
http://news.bbc.co.uk/1/hi/business/4711796.stm
ABSTRACT
Testing workers for inherited illnesses could lead to discrimination in the workplace and, if insurers were to get hold of the results, the potential for future health and life insurance cover to be denied, the groups warned.