DESIGNATED SURVIVOR - 'Backfire'- An investigative journalist shocks the White House when he reveals classified information during a press briefing and leaves Seth struggling to contain the damage from the leaked story. Meanwhile, Hannah unearths a key connection between MacLeish and the conspiracy, on ABC's 'Designated Survivor,' WEDNESDAY, MARCH 22 (10:00-11:00 p.m.  EDT). (Ben Mark Holzberg/ABC via Getty Images)