- Pierson resigned after inquiry into fence-jumper uncovered another security lapse
- An unscreened, armed man recently got close to the President
- The private security contractor was in an elevator with Obama during a visit to the CDC
- Pierson was the first woman to be Secret Service director
Washington (CNN)Julia Pierson, the first female director of the Secret Service, resigned Wednesday in the aftermath of a fence-jumper gaining access to the White House on September 19 and a subsequent congressional inquiry uncovering other security lapses.