The Defection Of A. J. Lewinter

For years, scientist A. J. Lewinter has been an insignificant cog in America's complex defence machinery- until the day he enters the Soviet embassy offering to defect. Suddenly Lewinter is swept up in a terrifying political chess match of deceit and treachery, orchestrated by two grand masters of the game: Russian Yefgeny Pogodin, part humanist, part Marxist; and ex-CIA agent Leo Diamond. Now two superpowers are locked in a deadly contest.
And Lewinter is the centrepiece: the enigmatic man who has the power to make the final move - and the devastating difference between stalemate and checkmate.
'One of the best cold-war thrillers I've read in years! New York Times