[Steve answers Tony's shift in posture with his own, raising his chin slightly just to make it clear that he's still bigger and can win the posturing game on size alone. He's not at the point of pushing the other man just yet, because it isn't his world, but he doesn't like Tony's phrasing. Just the mention of government influence gets under his skin.]

And you think that rolling over obediently is going to guarantee no one gets hurt? Sometimes that just isn't an option. There is always a catch. You have to take a stand somewhere.