The technology I used wasn't exactly Starfleet issue.
[Kirk] Oh, I don't know that I would offer him that choice, if it had been him and me as opposed to the Romulan and you/my brother. I simply chose to get on with the pressing mission of avoiding the demise of all biological life before further dealing with him. He ended up "infected" by the AI, if you will, and I am fairly sure he didn't make it, with how hellbent he was on killing us and the Enterprise crew. Someone has to have shut him down.