Jack closes his mouth and the doubt vanishes.

God, it's a relief to hear from Atlas. Of course he would've said something if there was a danger that Jack might... you know. This guy's obviously making a mistake.

"Sorry," he tells Kostya, as he adjusts the radio's strap on his shoulder. Bounces the pistol in his other hand. Moves a foot, ready to leave.

"I've gotta go."