Lena : [while Cragen is undercover] You worry about children. You worry about your staff. Who worries about you? Have you ever been married, Michael?
Captain Donald Cragen : Yes. I'm a widower. Marge, my wife, I lost her a long time ago.
Lena : Any children?
Captain Donald Cragen : Well, there was a miscarriage. And uh... we tried to adopt. I guess I was just too busy all the time. That's my biggest regret.
Lena : You're a man. It's not too late.