Tresca's political views became increasingly radical and he soon came to identify himself as an anarchist. In 1907 Tresca resigned as editor of "Il Proletario" and began publishing his own newspaper, "La Plebe" (The Plebeian). He would later transfer "La Plebe" to Pittsburgh and, with it, revolutionary ideas to Italian miners and mill workers in Western Pennsylvania. In 1909, Tresca became editor of "L'Avvenire," (The Future) remaining in that capacity until the coming of World War I, when the publication was suppressed under the Espionage Act.