Julia Pierson Resigns following Several High-Profile Security Lapses

The head of United States Secret Service, tasked with guarding President Barack Obama, has resigned following several high-profile security lapses.
Julia Pierson yesterday offered her resignation to the Secretary of the Department of Homeland Security.
A day earlier, she faced angry questions in Congress about a major breach of White House security. News of another incident involving an armed man allowed in a lift with Mr Obama compounded calls for her to go.