Mony de Swaan, a former head of the Mexican telecommunications regulator, took to Twitter to post pictures of walls related to the Nazi concentration camp Bergen-Belsen with the caption: “So you like. “Art and Politics in Our Epoch,” Leon Trotsky discussed the work of Mexican painter and muralist Diego Rivera, who was at that time in political sympathy with the Fourth International. Trotsky first a. Elder Travel Agents For Usa…