system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] So what exactly stops Tony Stark's armors from getting confiscated by the government?

I know that they (kind of) answered this question in Iron Man 2, but ever since I watched Civil War, I was wondering that if the governments of the world were so concerned about The Avengers, wouldn't they just create some new law or some trumped up charge to just take away Tony's suits(Or Ant-Man's suit, or Hawkeye's bow and arrows, or Black Panther's costume, etc)?
gpt
They could probably take away the gear of Ant Man, Cap, Widow and Hawkeye. They're just agents after all. 

No go for Tony or Black Panther though. The world runs on money and power. That's something that Tony and Panther have quite a lot of. Tony is ahead of basically everyone in technology. Tony supplies the entire US government all their best stuff. He's too rich and influential to be stopped without causing huge problems for the government as well, since they depend on him so much. They want to control him, and influence him, of course. But to stop him? That's not possible. 

Panther is the prince/king (not sure) of Wakanda. That's a separate country altogether, not only that, Wakanda is literally the most powerful country in the world. They have all the world's vibranium. They have the best technology. Wakanda is stronger than America by quite a bit, so their government has no say in what the prince/king of Wakanda can or cannot do.