Petraeus' mistress Paula Broadwell

Journalist Paula Broadwell with Gen. David Petraeus. Petraeus resigned his post as CIA director on Nov. 9, 2012, admitting to an extramarital affair.

FBI investigators who were checking into a security issue involving the CIA Director's computer stumbled upon emails between Petraeus and Broadwell.

Broadwell was a writer and reserve Army officer who wrote the 2012 book "All In: The Education of General David Petraeus."

Handout/Command Sergeant Major Marvin L. Hill

Author Paula Broadwell with Gen. David Petraeus aboard a Defense Department plane. Broadwell wrote the book "All In: The Education of General David Petraeus."

Journalist Paula Broadwell was embedded in Afghanistan with Petraeus July 2010 through July 2011, while he led the International Security Assistance Force there.

Journalist Paula Broadwell wrote the book "All In: The Education of General David Petraeus." She has been linked to the resignation of Petraeus from his post as director of the CIA.

A Harvard University research associate and Ph.D. candidate at King's College London, Paula Broadwell was granted extensive access to Gen. David Petraeus in Afghanistan to write his biography.

In a March 2012 interview with CBS News' Jeff Glor, Paula Broadwell said of David Petraeus, "I got to see a more personal side . . . he's confident, but he is also very compassionate about the loss of troops and the sacrifices we're making in Afghanistan on the front lines."

In a March 2012 interview with CBS News' Jeff Glor, Paula Broadwell said of David Petraeus: "He, at the end of the day, is a human and is challenged by the burdens of command and has mastered wearing the mask of command, if you will."

Author Paula Broadwell graduated from West Point, as did David Petraeus.

Paula Broadwell in Afghanistan.

A photograph of author Paula Broadwell, biographer of Gen. David Petraeus.

Paula Broadwell, author of a recent biography of Gen. David Petraeus, is pictured here with Lt. Col. Steven Grenier.

Paula Broadwell is pictured here with Gen. David Petraeus.

Paula Broadwell, author of a recent biography of Gen. David Petraeus, is pictured here.

From a video broadcasted on Nov. 17, 2012, Paula Broadwell and her husband arrived at her brother's home in Washington, D.C. In an apparent show of marital solidarity, the couple walked arm-in-arm from the garage to the house.