President Barack Obama sitting next to Senior Adviser Valerie Jarrett, and S. James Gates Jr., director of the Center for String and Particle Theory at the University of Maryland, College Park, talks about antibiotic-resistant bacteria as he meets with members of the his Council of Advisers on Science and Technology, Friday, March 27, 2015, in the Roosevelt Room of the White House in Washington. (AP Photo/Jacquelyn Martin) ** FILE **
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