Centers for Disease Control and Prevention Director Dr. Tom Frieden, left, prepares to testify on Capitol Hill in Washington, Thursday, Oct. 16, 2014, prior to testifying before the House Energy and Commerce Committee's subcommittee on Oversight and Investigations, to get answers about the Ebola outbreak from top U.S. health officials. Director Dr. Tom Frieden, left, takes his seat on Capitol Hill in Washington, Thursday, Oct. 16, 2014, prior to testifying before the House Energy and Commerce Committee's subcommittee on Oversight and Investigations, to get answers about the Ebola outbreak from top U.S. health officials.