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An anonymous reader writes "For decades, one of cancer's most powerful weapons has been to corrupt the human immune system. Finally, researchers in Philadelphia have developed a way to turn that weapon against certain cancers, and potentially open the door to a whole new generation of therapies for all manner of cancers" Link to Original Source
"Necessity is the mother of invention" is a silly proverb. "Necessity
is the mother of futile dodges" is much nearer the truth.
-- Alfred North Whitehead