[That tone, the implicit not-quite-threat is sparking something in Tony's head that he's been trying to fight down. God knows he's had this conversation often enough, but things are still on slightly shaky ground with his own people. They may have hashed things out, but part of him still feels like he has to be cautious.

Tony likes this Steve. Respects him, even. But he feels no need to be careful with him, and it might be evident by the way his spine straightens almost imperceptibly.]

Because something came down the political pipe and it was shitty, but it turns out that blatantly ignoring the government doesn't go well even if Captain America says so.