Defending President Barack Obama's much-maligned health care law in Congress, Health and Human Services Secretary Kathleen Sebelius was confronted Wednesday with a government memo that raised security concerns about the website consumers are using to enroll. The document, obtained by The Associated Press, shows that administration officials at the Centers for Medicare and Medicaid Services were concerned that a lack of testing posed a potentially ''high'' security risk for the HealthCare.gov website serving 36 states. Security issues are a new concern for the troubled HealthCare.gov website.
