Chloe: Curtis was in the Army just after Desert Storm. His squad was ambushed by Assad's people. They killed five of Curtis' men and took two more hostage. Curtis was badly wounded, he couldn't go after them. The next day a tape was sent to the local television station. Assad's lieutenant forced the men from Curtis' patrol to beg for their lives and then personally beheaded them both.
Jack: Oh my God.
Jack: Tell the President I'm sorry, I can't do this anymore.
Buchanan: The hell you can't! We're gonna find that suitcase nuke because of you, Jack. You've done great work today.
Jack: Good. Then you don't need me anymore.
Buchanan: I'll send a car for you, Jack. Come back here, we'll talk.
Jack: I'm done.
This episode marks the second time in the series (first time was in Season 2) that a nuclear explosion has occurred. However, it is the first time that it resulted in a massive number of casualties.