BALTIMORE (AP) — The president of the NAACP is stepping down as head of the nation's oldest and largest civil rights group, according to newspaper reports. Kweisi Mfume, who has been president of the National Association for the Advancement of Colored People since 1996, planned to make the announcement Tuesday, The (Baltimore) Sun, citing an anonymous source, reported in Tuesday editions. The resignation was also reported Tuesday in a USA Today opinions column by weekly contributor DeWayne Wickham. [flip]Last month, the NCAAP announced that the Internal Revenue Service was reviewing the organization's federal tax-exempt status. NAACP chairman Julian Bond said...