At the very beginning of 1951, after my graduation from Moscow State University, I was sent to the highly secret place. The degree of secrecy can be judged from the fact that during the processing of my transfer in Moscow (in a gloomy office on Tsvetnoi Boulevard), when I casually asked how long it took to fly to the place, I promptly received a half-hour dressing down-it turned out that I shouldn’t have said the word ‘aeroplane’ aloud.