Part of the problem with the discovery of the so-called breast-cancer genes was that physicians wrongly told women that had the genetic changes associated with the genes that they had a 99% chance of getting breast cancer. Turns out all women that have these genetic changes don't get breast cancer.
Every single cancer is a genetic disease. Not necessarily inherited from your parents, but it's genetic changes which cause cancer. So as we sequence the genomes of tumours and compare those to the sequence of patients, we're getting down to the fundamental basis of each individual person's cancer.
The leading edge of the best science in the world is being driven by private money, and investment money because of the scarcity of government money to do this. It's not only by far the best and most advanced science, we're driving the equation at Human Longevity that everyone else is beginning to follow as well.