"Did your trackers get anything?" Steve asked, sighing and letting his head lull back. There was no way out of this. Unless they could find some proof that Pietro hadn't left of his own accord they could do nothing except try and arrest him. And there was still nothing to say that even if he did return of his own free will, that his father was really just going to welcome him back. It didn't exactly fit with his history.
"So we wait until some one dies, pick him up, and stick him in a cell for the rest of his life. That'll put Wanda and Clint at ease."