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It is a sniper treatment for cancer,
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The question for cancer still remains --- How do you know that you've sniped every last one of the cancer cells using this technique ?
By analogy, if there are one million terrorists, and you kill 999,000 of them, does that mean you're safe ?
Sure, its better than chemo, where you kill ( to use their word -- snipe ) both the innocent together with the bad guys, but this isn't a cure.
Lets call it an improvement.
There are cancerous cells all throughout your body all the time. Cells mutate, and it's a natural and necessary thing. The trick is for your body to take care of the cancerous cells (it's doing this constantly) in a timely enough manner so that the cancerous cell doesn't become a mass of cancerous growth that encroaches on other bodily assets.