There's a revolution occurring in cancer treatment, and it could mean the end of chemotherapy. When it comes to taming tumors, the strategy has always been fairly straightforward. Remove the offending and abnormal growth by any means, in the most effective way possible. And the standard treatments used today reflect this single-minded approach ? surgery physically cuts out malignant lesions, chemotherapy agents dissolve them from within, and radiation seeks and destroys abnormally dividing cells. There is no denying that such methods work; deaths from cancer have dropped by around 20% in the U.S. over the past two decades. But as effective as they ar