>>94016550She's one of the most powerful beings on the planet. What's more important? Punishing her further for her mistakes, after she's lost everything and is trying to atone, making an enemy of her in the process, and hoping you can keep her contained, or trying to rehabilitate her, make her an Avenger, and getting her to use that power to protect the world?
Aside from stealing materials to build more Ultrons, most of what she did falls under "what would you even charge her with?", as most countries don't have laws relating to using mental powers on people.
