Jorge Masetti

At the start of March 1964, more than five months after entering Argentina, they encountered the Gendarmerie for the first time. The Gendarmerie seized their camp in La Toma, arresting five people and taking their supplies and weapons. The guerrillas who escaped regrouped, but Masetti did not accept the opinion of other members who thought they should abort the operation given their current situation. Masetti ordered one group to look for food while he stayed behind, but two of this group, Marcos and César, died of hunger in the jungle and another two, Jouvet and Antonio, fell into a gorge. Antonio died of his wounds and a lack of medical care.

Jouvet's group survived despite considerable hardship caused by food shortages, and in the middle of April they were found by the Gendarmerie, detained, and then put on trial. A few days after the Gendarmerie found the other group. Two men, Jorge Guille and the Cuban Hermes Peña were killed in combat while the rest were arrested. Masetti, who was not with them, was never seen again, so his date of disappearance was listed as 21 April 1964.

In 1963, the situation changed due to the calling of limited elections won by Arturo Illia of the Radical Civic Union. Peronists were not permitted to participate in the election. On 21 September 1963 Masetti's guerrillas crossed into Argentina and after several days on foot settled down near the Pescado River. Continuing with their plan to topple the government, they commenced the armed insurgency with a public letter to President Illia dated 9 July 1963. The guerrilla Bustos was in charge of taking the letter to the media, which meant he had to travel through the whole country. Though the letter had practically no impact on the media and on public opinion which barely noticed it, it did spark the immediate mobilization of the Argentine National Gendarmerie, Argentina's border security force then led by General Julio Alsogaray, the brother of politician and economist Álvaro Alsogaray, with the mayor of Salta Héctor Báez taking command of the troops in his city.

After the overthrow of President Arturo Frondizi by the Argentinean military in 1962, Che Guevara and Masetti started to think about the possibility of setting up a guerrilla cell, or foco, in Argentina. They eventually decided to start the struggle in Salta Province in the northwestern Department of Orán, a jungle area bordering on Bolivia. It was a group of nearly 30 guerrillas, mostly Argentineans with a few experienced Cubans, which took the name of People's Guerrilla Army and made their first encampment at Emboruzú in Bolivia. Masetti took the rank of deputy commander, saving the leadership for Che when he was ready to join the group after it had established itself. Then the code of conduct was drawn up which, among other things, demanded the death penalty for homosexuality, as well as for treason, exploitation of the civilian population, rape, and theft.

In 1961, Masetti left Prensa Latina disappointed by growing sectional rivalries within the organization, and also excited about playing a more aggressive role as a revolutionary. Masetti himself said, "to be a revolutionary I had to sacrifice my inner journalist." The same year he participated in the defense of Playa Girón during the Bay of Pigs Invasion and then he went to Algeria and created a team of guerrillas to fight for the National Liberation Front during the Algerian War. It was in Algeria that Angel Boan, a friend and colleague of his from Prensa Latina, was killed in action.

When he returned to Buenos Aires Masetti was discouraged to find out that his news reports had not been published in his country and because of that he accepted a task given to him by Che Guevara following the victory of the Cuban Revolution to found a news agency in Cuba. This was the origin of Prensa Latina which still exists today. Among the reporters and intellectuals who joined Prensa Latina under Masetti's leadership were Gabriel García Márquez, Rodolfo Walsh, Rogelio García Lupo, Carlos Medina de Rebolledo who was part of the Santiago editorial staff, Angel Boan, and Carlos María Gutiérrez, and contributors included Jean-Paul Sartre, Waldo Frank, Charles Wright Mills, and others. In this period Prensa Latina covered such events as earthquakes in Chile, the military coup that overthrew President Arturo Frondizi of Argentina, and the revolution led by Jesús María Castro León in Venezuela. From 4 to 5 March 1960, Masetti personally reported on the explosion of La Coubre, a ship docked in Havana Harbor which had exploded at the cost of 100 lives. It is Masetti who appears in the original, uncropped photograph of Che Guevara, taken by Cuban photographer Albert Korda at the March 5, 1960 memorial for the victims of the La Coubre explosion. In the uncropped photograph, Masetti's profile is visible in the left of the frame. The cropped version of this photograph is widely considered to be the most-reproduced image in the world.

During the Cuban Revolution he was the only Argentine reporter on the scene in the Sierra Maestra covering the 1958 guerrilla campaign led by the 26th of July Movement. As a special correspondent of Radio El Mundo, he got several interviews with Fidel Castro, as well as with Che Guevara who became a close friend.

Jorge Josè Ricardo Masetti Blanco was born in Avellaneda, a city located in the industrial belt formed around the city of Buenos Aires. He was born into a family descended from immigrants who came from the city of Bologna in Italy. In the mid-1940s, he was an active member of the Nationalist Liberation Alliance, an extreme right-wing organization, together with Rodolfo Walsh and Rogelio García Lupo.

Jorge José Ricardo Masetti Blanco (born 31 May 1929; disappeared 21 April 1964), also known as "Commander Segundo", was an Argentinean journalist and guerrilla leader. Born in Avellaneda, Masetti entered the jungle at Salta and after 21 April 1964 was not heard from again. He was the founder and the first director of the Cuban news agency Prensa Latina, and became the leader of one of Argentina's first guerrilla organizations, the Guevarist People's Guerrilla Army.