I will give you one warning regarding working on books/stories about terrorists and the like. It's pretty much for people living in the US...watch your research!
phew, glad that I live in Europe. But yeah, my own bookshelf can also raise some eyebrows. Does anyone know if someone watches amazon wishlists? I'm not sure about how that coup d'etat guidebook comes across.
Anyways... I wouldn't feel responsible in general, because I do not believe that the media are responsible for bad behavior. I might emotionally feel a bit guilty though. Depends on what happened and how it was connected to a book.