[He absorbs that with a slight wince and glances away again. That hits perhaps a little too close to home.]

I see. We don't have an expression for it, but the principle is the same. Making the choice to take a life to prevent greater harm. And if you choose to do nothing, then the blood of all five is on your hands.

[...He's doing an excellent job of being reassuring.]

--If you accept the premise of the tracks to begin with.