Centers for Disease Control (CDC) Director Dr. Thomas Frieden pauses during a hearing on Capitol Hill in Washington, Wednesday, July 16, 2014, before the House Energy and Commerce Committee. Frieden ... more 
Centers for Disease Control (CDC) Director Dr. Thomas Frieden pauses during a hearing on Capitol Hill in Washington, Wednesday, July 16, 2014, before the House Energy and Commerce Committee. Frieden answered questions about on an incident last month at a Centers for Disease Control and Prevention lab that handles bioterrorism agents. (AP Photo/Pablo Martinez Monsivais) less 
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Associated Press | Photo By Pablo Martinez Monsivais
Wed, Jul 16, 2014 11:45 AM EDT