The Quantum Spy

“The Quantum Spy takes us to a whole new level of intrigue and espionage. It’s also unbelievably timely. In short: David Ignatius knows his stuff.” —Wolf Blitzer

A hyper-fast quantum computer is the digital equivalent of a nuclear bomb; whoever possesses one will be able to shred any encryption and break any code in existence. The question is: who will build one first, the U.S. or China?

In this gripping thriller, U.S. quantum research labs are compromised by a suspected Chinese informant, in...