WASHINGTON (AP) — The House passed three bills Tuesday designed to highlight complaints that the IRS mistreated conservative political groups when they applied for tax-exempt status. One bill makes it illegal for IRS workers to use personal email accounts to conduct official business. Another bill guarantees groups that are denied tax-exempt status the right to appeal the decision to a separate IRS office. The third bill addresses complaints from groups that have had their confidential taxpayer information improperly disclosed by IRS employees.