Bucky sighs and has the good grace to set down his glass rather than continue drinking as is, unfortunately, his first inclination. He's never taken any solace in going over kills, never found comfort in taking another person's life. It is what it is, and he's very, very good at it, but it's the fight that gets his blood going, not what inevitably happens after.

That part's just often necessary and needs no further discussion. What happened with Zemo was no different.

Taking care to make eye contact, Bucky's eyebrows inch just a touch higher.

"Someone had to," he says, simply, and between his expression and his tone, it's clear Steve has already exhausted that particular line of conversation.