Celia Hart is a physicist, a writer, and a member of the Cuban Communist Party. She has described herself as a "freelance Trotskyist" since discovering Trotsky's writings when she was studying physics in East Germany in the 1980s. At that time she could see at first hand to what extent this so-called "really existing socialism" was a society in decadence and without a future. She is the daughter of two historic leaders of the Cuban revolution, Haydée Santamaria and Armando Hart.

Walter Lippmann has participated in the struggle for a better world since 1961 as a writer, photographer and activist. He resides in Los Angeles, California and is the editor-in-chief of the CubaNews e-mail list.