The Illegals The Secret History of Russia's Most Audacious Spies and Their Century-Long Fight to Bring Down the West from Within

"A century ago, the new Bolshevik government began sending Soviet citizens abroad as deep-cover spies, training them to pose as foreign aristocrats, merchants, and students. Over time, this became the most ambitious espionage program in human history. Many intelligence agencies use undercover operatives, but the KGB was the only one to go to such lengths, spending years training its spies to pass