Kathleen Sebelius (R), U.S. Secretary of Health and Human Services, testifies before the Senate Finance Committee hearing on health insurance exchanges on Capitol Hill in Washington D.C. on Nov. 6, 2013. (Xinhua/Fang Zhe)

　　Kathleen Sebelius (2nd L), U.S. Secretary of Health and Human Services, arrives at the Senate Finance Committee Hearing on health insurance exchanges on Capitol Hill in Washington D.C. on Nov. 6, 2013. (Xinhua/Fang Zhe)