Mirror's Edge has a lot going for it. With unique parkour-style gameplay and gorgeous environments, it had players in thrall, wanting to know more about the runners and the world in which they operate. The game was unfortunately light in that regard, with the runner narrative being shuffled to the background early on, but the concept is still present. However, one aspect of the game is so crucial that it's hard to ignore how quickly it's disregarded: the pursuit cops of Project Icarus.
Project Icarus--brought up in one of the game's earliest chapters and acting as one of the plot's central foci--is an operation to eliminate runners like Faith by creating state-trained assassin runners called pursuit cops to take them out. However, excluding an appearance as mooks in a later chapter, these folks all but vanish after the big reveal. Production difficulties seem to be to blame, and since Mirror's Edge 2 is set to be a prequel, it's a safe bet they won't be making another appearance any time soon. Ah, well, better luck next time.