laser surgery is wonderful for people diagnosed with cancer. It is less invasive. Sure prevention is great but some children and others that live healthy life styles still get cancer. I thank God and NASA for the wonderous things they have done to improve our health, day to day life and so much more...too bad you do not grasp that! I stated that was a drop in the bucket as to the many innovations accomplished. I support space exploration and agree with Newt.
No surgery at all is better.
Nutrition/herbal therapy ALWAYS works when no invasive treatment has been done. Its the ones that have been given up for dead after failed treatment that have a lesser chance at healing, because they have been so severely weakened.