Queen of Cuba: An FBI Agent's Insider Account of the Spy Who Evaded Detection for 17 Years

As a spy prepared to give away America’s biggest secrets after the 9/11 attacks, an FBI agent raced to catch her.

U.S. government officials knew they had a spy. But it never occurred to them it was a woman—and certainly not a superstar Defense Intelligence Agency employee known as “the Queen of Cuba.”

Ana Montes had spent seventeen years spying for the Cubans. She had been raised in a patriotic Puerto Rican household: Her father, a psychiatrist, was a former colonel in the U.S. Army. Her sist...