Yes it's great that she won't get breast cancer but whats to say she won't get one of the many other hundreds of cancers out there? Whats to say she abuses the fact and smokes and drinks her life away anyway, in the end dying of lung cancer or liver failure?
The fact she doesn't have a breast cancer gene may well make her susceptible to other cancers/diseases, messing about with genes is a very dangerous thing.
I don't believe this has been done to benefit this little girl really, more just to show it can be done, it will probably do more harm than good in the long run. Sorry for the pessimistic post, cancer is awful for all those affected, for families too
