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Cori Bargmann's new job description includes "to help cure, prevent or manage all diseases by the end of the century." That's quite a lofty goal.

Bargmann is a neuroscientist and president of science for the Chan Zuckerberg Initiative, the joint venture of pediatrician Priscilla Chan and Facebook co-founder Mark Zuckerberg. The couple pledged $3 billion to solve major medical problems by helping scientists and engineers collaborate long term, over 25, 50, even 80 years.

In case you needed more evidence of the toll this divisive campaign is taking on America, a new survey says more than a third of social media users are "worn out" by the amount of political content they encounter.

AT&T's proposed $85.4 billion acquisition of Time Warner has cast renewed attention on the financial performance and journalistic independence of one of the media conglomerate's best-known possessions, CNN.

"You have to allow the organization to run independently," AT&T Chairman and CEO Randall Stephenson tells NPR. "It's not an altruistic thing either. I mean, I personally think it's a smart business thing to do. If the customer ever believes that the news is being tainted by the opinion of myself or somebody else within AT&T, that's brand damaging."

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