"I am sorry." It wasn't fair, no. "Your brother's obsession, what he thinks is love, it's volatile. I'm sure you know, he seems to have some of that over you as well." Given the memories he had put into Ianto's head. They were clearly about Giacomo, it was very obvious now.

"Maybe you can just meet him. We'll... We'll monitor things." They had to run experiments, really. Gather data. But Jack had a feeling that wasn't a good subject to bring up. "We have experts and great technology. I'm sure your physical presence could be obsolete soon." They just needed something that could temporarily neutralise Barty at any point. An injection based on Giacomo's power, maybe that was possible.