It use to be that Marvel had Black Widow as a great source for spy/espionage stories that weren't too overblown with super-humans and stuff. (S.H.I.E.L.D., on the other hand, sometimes had the human side get lost with superheroes, all the ultra-cool gizmos, world-ending threats, etc.)
Now that we're getting the Legacy relaunches, what books seem like they may be more about espionage than just spandex-clad battle after battle?