This may be a tiny bit of a spoiler for you if you have not watched this wonderful series yet, but an infant gets killed by a cylon posing as a human in the pilot. Six years ago I would have cringed, but shrugged it off, but starting four and a half years ago my reaction was much stronger than a cringe. (This was not the best choice for immediate postpartum viewing.) Maybe it was a fundamental change, or maybe it was the hormones (hard to tell, I've been hormonally enhanced ever since thanks to lactation/pregnancy/doing IVF), but once Margaret was born my reaction to even the make believe death of a baby was so very much stronger, and it has remained very much stronger.
In the wake of the tragedy in Newtown, there has been much chatter about how to talk to our children about what happened. There really is not much productive to say about a deranged individual gunning down over two dozen people when the median age of his victims in six. One thing we should be honest and truthful about though: it's really not our kids who are bothered by this, it's us adults, especially the parents. When I was a kid I would have been sad to learn about the death of another child, but if it wasn't someone I knew it would not affect me that deeply, nor would it hold my attention. I think we need to come clean, it is not our kids who will now be terrified by monsters lurking near their schools, it is us parents who are suddenly fearful of the cylons among us.