Women who carry mutations in the BRCA1 and BRCA2 genes have a dramatically increased risk of developing breast cancer: a 36 to 85 percent chance of developing the disease during their lifetime, which is three to five times greater than the average risk rate. Ken Offit, chief of the clinical genetics service at Memorial Sloan-Kettering Cancer Center, in New York, wants to know how the other 15 to 64 percent escape unscathed.

>>>>> Article in MIT Technology Review