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In the midst of a great campaign of stories and rumors , the establishment of a committee with the absence of comrade Guevara would have seemed a very strange thing and would have led to a great many speculations abroad and also here at home . Our committee would have been established several months before if it had n't been for the circumstances of the absence of comrade Guevara . But the myth is firing up people whose causes , for the most part , represent the exact opposite of what Guevara was , says Alvaro Vargas Llosa . They complete mathematics-based homework assignments to better understand the theoretical underpinnings of security Guevara Noubir instant messaging program that will become part of the network they protect during the competition . Nearly half a century after Che Guevara 's " Motorcycle Diaries " , author Patrick Symmes sets off along the same back roads of South America in search of the Guevara legend .