Centers for Disease Control (CDC) Director Dr. Thomas Frieden, joined by and Deputy Director of the CDC's Office of Security and Emergency Preparedness, Dr. Joseph Henderson, right, pauses during a ... more 
Centers for Disease Control (CDC) Director Dr. Thomas Frieden, joined by and Deputy Director of the CDC's Office of Security and Emergency Preparedness, Dr. Joseph Henderson, right, pauses during a hearing on Capitol Hill in Washington, Wednesday, July 16, 2014, before the House Energy and Commerce Committee. Frieden and Henderson 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 11:51 AM EDT