This is an eye-opening account, based on authentic documentary evidence, of two American Catholic radicals Dorothy Day (1897-1980) and Peter Maruin (1877-1949), founders of the Catholic Worker Movement, who made common cause with Communist-led movements during the Great Depression and the Cold War to build a new society where "Social Justice" would reign supreme. It is against the background of their involvement with Communist-led movements for political revolution that their ideology of a new social order can be seen in its true light. The aim of the book is to expose their attempts to make Socialism acceptable within the Catholic Church under the guise of "Christian Communism." This book is a wake-up call for those who envisage "Social Justice" solutions that replicate Socialist patterns of control over political, social and economic structures. It is a timely reminder that, although Communism has officially "fallen", its influence is a slow-burning process smouldering away at the Christian foundation of Western society. The importance of this message to the survival of traditional Catholicism is obvious: as Dorothy Day's cause for canonization has been opened by the Vatican, there is an ongoing need to alert people to the dangers of importing into the Christian community the same revolutionary principles espoused by Lenin and his followers. This book will appeal to anyone interested in issues concerning the continued dangers posed by "cultural Marxism" to our Christian-based cultural heritage.