Lois Lerner, the Internal Revenue Service’s director of exempt organizations, has been placed on administrative leave, according to a source in the agency’s Cincinnati office. Lerner on Thursday afternoon sent an e-mail to employees in the exempt organizations division she oversees stating, “Due to the events of recent days, I am on administrative leave starting today. An announcement will be made shortly informing you who will be acting while I am on administrative leave. I know all of you will continue to support EO’s mission during these difficult times.” She concluded, “I thank you for all your hard work and...