Secret Service Director Julia Pierson Resigns

Secret Service agents are reflected in the glass of the briefing room door as Josh Earnest, the White House press secretary, speaks to reporters about the appointment of an acting director of the service to replace Julia Pierson, who resigned Wednesday.

Secret Service Director Julia Pierson offered her resignation Wednesday after several security breaches affecting the White House and President Obama became public, Department of Homeland Security Secretary Jeh Johnson announced Wednesday.

Pierson's bigger mistake, and the one that might force a bigger shake-up on the Secret Service than she intends: her failure to grasp the larger problem. The first woman to lead the elite lawenforcement squad, she was brought in to change the frat

Secret Service Director Julia Pierson resigned Wednesday amid a series of mistakes by the agency. It came shortly after White House Press Secretary Josh Earnest had said the president had "full confidence" in Pierson.

Pierson's bigger mistake, and the one that might force a bigger shake-up on the Secret Service than she intends: her failure to grasp the larger problem. The first woman to lead the elite lawenforcement squad, she was brought in to change the frat