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May 19, 2014
CIA says it's done with fake vaccination campaigns
The CIA ran a bogus vaccination program to gather intelligence on Osama bin Laden. After the ruse was exposed, experts have been concerned that it has eroded public trust at a critical time for eradicating polio.
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May 7, 2014
Why polio is back
This paralyzing disease has been nearly eradicated for more than a decade. And now it's on the rise.