Person of Interest2011

Harold Finch:
I've never regretted building the machine. But I didn't fully realize the personal cost. I'm good with computers. People; well, people other than Grace; have always been a mystery to me. I failed to recognize the lengths to which they would go to protect the machine, to control it. By the time I realized it, it was too late for me. But not for her. You see, Mr. Reese, if knowing about the machine is like a virus, that makes me patient zero. Simply being near me was putting her life in danger. I'm sorry. I was lucky. I had four years of Happiness. Some people only get four days.