The Chernobyl disaster, the death of the Kursk submarine, the Tu-154 plane near Donetsk, the accident at the Sayano-Shushenskaya hydroelectric power station... It seems that in recent years Russia has been living from disaster to disaster. To stop the terrible “ninth wave” approaching us, it is necessary to understand how and why these tragedies occur. Year after year, debates do not cease about what prevented the threat from being averted - frivolous disregard for the danger or criminal intent. This book proves that every disaster could have been avoided. Readers will get acquainted with the circumstances and causes of the most famous disasters in the USSR-Russia, memories and eyewitness accounts. The author also analyzed various versions of events, including hypotheses about possible sabotage. Was it really true that at the moment of the explosion of the Chernobyl reactor, an American satellite was hovering in the sky above the station, and the Kursk nuclear submarine was torpedoed by a foreign submarine? Every major disaster remains a mystery, but some of them will definitely be solved.