Che Guevara
In Guevara's private writings from this time (since released), he displays his growing criticism of the Soviet political economy, believing that the Soviets had "forgotten Marx". This led Guevara to denounce a range of Soviet practices including what he saw as their attempt to "air-brush the inherent violence of class struggle integral to the transition from capitalism to socialism", their "dangerous" policy of peaceful co-existence with the United States, their failure to push for a "change in consciousness" towards the idea of work, and their attempt to "liberalize" the socialist economy. Guevara wanted the complete elimination of money, interest, commodity production, the market economy, and "mercantile relationships": all conditions that the Soviets argued would only disappear when world communism was achieved. Disagreeing with this incrementalist approach, Guevara criticized the "Soviet Manual of Political Economy", correctly predicting that if USSR did not abolish the law of value (as Guevara desired), it would eventually return to capitalism.
Che Guevara
Guevara was instrumental in creating the clandestine radio station "Radio Rebelde" (Rebel Radio) in February 1958, which broadcast news to the Cuban people with statements by the 26th of July movement, and provided radiotelephone communication between the growing number of rebel columns across the island. Guevara had apparently been inspired to create the station by observing the effectiveness of CIA supplied radio in Guatemala in ousting the government of Jacobo Árbenz Guzmán.