Guest blogging for Charlie Stross, Harry Connolly has some ideas on the classification of thrillers. To borrow his terminology, Sounds of Soldiers is a story which takes place after a High Thriller/Technothriller plot goes wrong (or, at least, resolves itself in a way which would be unthinkable to the likes of Clancy).
The comment thread seems to be a discussion of where, and whether, a technothriller would fall within Connolly’s definition and is interesting in itself.