Consider this highly recommended: Matt Ruff's "Bad Monkeys"
I just finished Matt Ruff's book "Bad MOnkeys" and I'm reeling from the energy and spectacle of it. It feels like Fight Club and Philip K Dick and The Usual Suspects squished through a filter of post-9/11 paranoia. Two thirds through the book I couldn't decide if the narrator was telling the truth or had had a psychotic break with reality. And I couldn't decide which I'd prefer. The book is dangerously clever.
Here is what the good people at Powells.com have to say about it:
Bad Monkeys inhabits the same literary space as the drug-fueled paranoia of Philip K. Dick, owing a particular debt to Minority Report. In that story, the protagonist is a detective in a division of the police department that investigates what are called "pre-cog" crimes, arresting perpetrators before they have a chance to act on their impulses. In Ruff's universe, it's not a matter of seeing the future as much as handicapping it, singling out bad seeds and eradicating them. It's not about justice; it's about, as one the Bad Monkeys operatives puts it, "fighting evil in all its forms." Bad Monkeys is an intriguing exploration of moral relativism set in a plot so labyrinthine that it could have sprung from the mind of Borges if he wrote screenplays for Michael Bay. Often the lines between heroes and villains are blurred, and the organization, which is ostensibly fighting for good, engages in surveillance so ubiquitous and undetectable that Alberto Gonzales would be green with envy. And, there is never any explanation as to who charges the Bad Monkeys with their tasks or gave them a license to kill. It's a shadow organization whose umbra gets murkier the longer Jane works for them.