U.S. Secretary of State John Kerry participates in a Twitter Q&amp;A with Bill Nye the Science Guy during the Our Ocean Conference on June 17, 2014. [State Department photo/ Public Domain]
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/statephotos/14466773243/">Secretary Kerry Participates in a Twitter Q&amp;A with Bill Nye</a>