Students Amanda McComas, Rose Marie Chute and Sari Schwartz are approached in October at Santa Monica City College in California about signing up for insurance with the Affordable Care Act. Robyn Beck/AFP/Getty Images hide caption

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"I apologize," Health and Human Services Secretary Kathleen Sebelius said Wednesday at a congressional hearing on problems with HealthCare.gov. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

Rep. Mike Rogers, R-Mich., asks about website security questions Wednesday at a House Energy and Commerce Committee hearing on problems with HealthCare.gov. Chip Somodevilla/Getty Images hide caption

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Gilroy Hain's only source of income is the $1,500 a month he receives from Social Security. Ina Jaffe/NPR hide caption

itoggle caption Ina Jaffe/NPR

One person who got a letter canceling his health insurance was Rep. Cory Gardner, R-Colo. He holds up the letter during a congressional hearing Wednesday on insurance problems. He says his family chose to buy private insurance rather than use the congressional plan. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP