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When Charlie Clark takes a break from his latest losing streak at the track to bring home his Alzheimer's-addled father, Drummond, they?re attacked by two mysterious shooters.� At first, Charlie thinks his Russian ?creditors? are employing aggressive collection tactics.� But once Drummond effortlessly hot-wires a car, Charlie discovers that his unassuming father was actually a deep cover CIA agent . . . and there is extremely sensitive information rattling around in his troubled mind.� Now the CIA wants to ?contain? him, so the two embark on a wild chase through the labyrinthine world of national security that will force them to confront unspeakable danger, dark conspiracies, and what it means to be a father and son.

In the National Security Agency's cipher-locked Tordella Supercomputer Building, hard drives are capable of storing upwards of a petabyte of data, equal to about 20 million four-drawer filing cabinets of top secret paper. When the time comes to destroy that information, the drive is first put in a $44,000 degausser that completely erases the magnetic memory. Then, for good measure, the drive is inserted into a $7,000 "Physical Hard Drive Destroyer" where it is bent, broken, and smashed. Although expensive, the entire operation can be accomplished in less than a minute.

Across the Potomac River at CIA headquarters, however, getting rid of information presents a far more difficult problem; the most sensitive data is stored not in hard drives, but in human brains. So what happens when one of those brains, belonging to a top agency spy, comes down with Alzheimer's?

That is the problem the agency is having with Drummond Clark in Keith Thomson's enjoyable spy novel, Once a Spy. Uncertain of what the former spy may do, the agency's only way to ensure the security of the information in Drummond's mind is to put him through their own version of the NSA's Physical Hard Drive Destroyer: bend, break, and smash him.

Caught in the middle is Drummond's gambling-addicted son, Charlie, who has always known his father not as a stealthy CIA officer, but as a down-beat, work-a-day appliance salesman. He slowly starts to see his father in a different light, however, after someone blows up his Brooklyn apartment and Drummond begins engaging in some unique tradecraft, not common to appliance tradesmen. Soon, it's not just the CIA that wants to put Drummond and Charlie in the shredder, but others, leading to an elaborate father-son escape with many false turns, unexpected detours, and the possibility of a very dead end. Once a Spy is a wild ride. --James Bamford

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