Venona. The most secret operation of the American special services. Lainer L.

During the operation, under the code name Venona, which began in 1943 and lasted almost 40 years, the American special services managed to read a total of more than three thousand encrypted messages, which in the 1940s exchanged with Soviet diplomatic and trade representatives abroad. The book talks in detail about this operation, which has become the main source of information about Soviet intelligence operations in the United States in the twentieth century.