Citadel: The Fourth Estate

Citadel: The Fourth Estate is obtained by agreeing to be interviewed by Khalisah Al-Jilani, a reporter from Westerlund News; she appears in C-Sec after completing a plot-crucial mission (either Feros, Noveria or Therum).

When you next interact with the Galaxy Map aboard the Normandy, Admiral Hackett will open a communications channel with you to discuss how you handled the interview.