Who is Sean Curran, the new head of US Secret Service

US President Donald Trump on Wednesday nominated a Secret Service agent who rushed onstage to protect him from a would-be gunman during a failed election rally assassination bid to become the agency's next director. The president noted Curran's 23-year Secret Service career that began when he was a special agent in the Newark field office and led to his promotion to become head of the Presidential Protective Division in the Republican's first term.