 Louis reported that the Soviet Union might be considering a preventive nuclear attack against China as well as the information about the Moscow metro bombing of 1977; he ascribed the latter to dissidents, which gave the authorities a pretext for a harsh crackdown.In 1968, a few months before the publication of "Twenty Letters to a Friend" by Joseph Stalin's daughter Svetlana Alliluyeva (who had defected two years prior), Louis brought out the KGB's unauthorized copy in Germany to damp the sensation.He was instrumental in smuggling both Khrushchev's memoirs and Aleksandr Solzhenitsyn's "Cancer Ward" to the West, although in the latter case he is believed to have had the aim of compromising the writer at home.