WASHINGTON (AP) -- Health and Human Services nominee Kathleen Sebelius recently corrected three years of tax returns and paid more than $7,000 in back taxes after finding "unintentional errors" - the latest tax troubles for an Obama administration nominee. The Kansas governor explained the changes to senators in a letter dated Tuesday that the administration released. She said they involved charitable contributions, the sale of a home and business expenses.... By ERICA WERNER More...