WASHINGTON (AP) — The Internal Revenue Service is apologizing for inappropriately flagging conservative political groups for additional reviews during the 2012 election to see if they were violating their tax-exempt status. Lois Lerner, who heads the IRS unit that oversees tax-exempt groups, said organizations that included the words "tea party" or "patriot" in their applications for tax-exempt status were singled out for additional reviews. Lerner said the practice, initiated by low-level workers in Cincinnati, was wrong and she apologized while speaking at a conference in Washington. Many conservative groups complained during the election that they were being harassed by the...