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DNA and genetic testing are big business. But there are real questions about privacy and about what happens to your genetic information after you get tested. Recently the DNA testing company 23andMe partnered with pharmaceutical giant GlaxoSmithKline to develop personalized drugs and research treatment for diseases like lupus and Parkinson's. Jen King, director of consumer privacy at the Center for Internet and Society at Stanford Law School, told Molly Wood that, surprisingly, most people who take DNA tests don't think the data is all that personal.