Many Mexicans knew about his Nazi collaboration at the beginning of WWII, but the information was being ignored, if not actively suppressed after the war. However a Jewish scholar of Latin American history, Itzhak Bar-Lewaw, rediscovered Vasconcelos’ Nazi connections as publisher of the pro-Nazi propaganda magazine, Timon (the Rudder). Bar-Lewaw re-publicized the information, starting in the early 1970’s.
Below is an English translation of a 6-page article that he wrote in Spanish about it. Bar-Lewaw is too kind to Vasconcelos in places. He was very anti-American and anti-Anglo long before WWII, blaming Anglo society for preventing Mexico from becoming a great nation. He actually demonized anglos and America.