There's a lot to be said for getting to the cancer before it takes off. Silver bullets are easy to dismiss, but what we're really talking about is stopping a simple process with a simple process. It would be hard to stop a missile once it's off the ground, but from the silo it's a matter of turning off a few switches - or rather, not allowing them to be turned on.

I don't claim to know medicine, but I am familiar with simple measures equating to great results when acting on initial factors. An ounce of prevention equals a pound of cure in this case.