The Meandering "What if" Thoughts of Birthing a Book

People often ask me how I - a seemingly well-balanced, part-time working mother of two - came up with the plot of my novel, Nation of Enemies, A Thriller. It's based in the near future in a (civil) war-torn United States with a new caste system based on DNA. I don't even read thrillers. And yet...it just came to me. This is a piece about how a piece of information can lead you down a path and before you know it, you've written a novel.