She offered him a slightly melancholy smile. "Is it that obvious? I suppose... it's nothing serious, I just... I wish I could be doing more. I know we're helping a lot of people, here and now - that all of these people rely on us and what we do, but I can't shake the feeling that I could be doing so much more, if I put my mind to it. I should know, with how much death and destruction I did cause. It's so much more difficult to build up a life, than tear one down."