Typescript transcript of a press conference following the publication of Weaponry in space: the dilemma of security (Mir Publishers, Moscow, USSR, 1986), edited by Professor Evgeny Pavlovich Velikhov, Soviet Kurchatov Institute of Atomic Energy, 1961-1984, and Professor of Nuclear Physics, Moscow State University, 1973-1986, Professor Roald Zinnurovich Sagdeyev, Soviet Academy of Sciences, 1956-1973, and Andrei Afanasevich Kokoshin, Soviet defence and foreign policy analyst [1985-1990], relating to the US Strategic Defense Initiative (SDI), 1983-[1989].