The New York Times is reporting high-level officials at the FBI and Justice Department were notified in late summer about the extramarital affair that prompted CIA Director David Petraeus to resign on Friday. The relationship between Petraeus and his biographer, Paula Broadwell, was uncovered during an FBI investigation into harassing emails allegedly sent by Broadwell to another woman. Members of Congress have complained they were not informed of the FBI’s findings until just after the election. As head of the CIA, Petraeus oversaw the agency’s use of drones for targeted killings abroad and had recently pushed the White House to approve a major expansion of the agency’s drone fleet. Petraeus also directed the so-called “surge” of troops in Iraq under President George W. Bush and later commanded U.S. and coalition forces in Afghanistan. In a letter to the CIA workforce Friday, Petraeus said of the extramarital affair: “Such behavior is unacceptable, both as a husband and as the leader of an organization such as ours.”