In a symposium launched to review Michel Garder's French book: "L'Agonie du Regime en Russie Sovietique" ("The Death Struggle of the Regime in Soviet Russia"), which also predicted the collapse of the USSR, Yale Professor Frederick C. Barghoorn dismissed Garder's book as "the latest in a long line of apocalyptic predictions of the collapse of communism." He warns that "great revolutions are most infrequent and that successful political systems are tenacious and adaptive." In addition, the reviewer of the book, Michael Tatu, disapproved of the "apocalyptic character" of such a forecast and is almost apologetic for treating it seriously.