A top Department of Justice official was removed Friday from an investigation into former CIA Director John Brennan after she reportedly expressed doubts about the probe. Maria Medetis Long, chief of the national security section for the U.S. attorney’s office in Miami, notified attorneys working on the probe that she would no longer handle the case moving forward, people familiar with the matter told CNN . Two sources told ABC News that Medetis Long had expressed doubts about the investigation.