Elemente und Ursprünge totaler Herrschaft
In the 1950s Arendt wrote "The Origins of Totalitarianism" (1951), "The Human Condition" (1958) and "On Revolution" (1963). Arendt began corresponding with the American author Mary McCarthy, six years her junior, in 1950 and they soon became lifelong friends. In 1950, Arendt also became a naturalized citizen of the United States. The same year, she started seeing Martin Heidegger again, and had what the American writer Adam Kirsch called a "quasi-romance", lasting for two years, with the man who had previously been her mentor, teacher, and lover. During this time, Arendt defended him against critics who noted his enthusiastic membership in the Nazi Party. She portrayed Heidegger as a naïve man swept up by forces beyond his control, and pointed out that Heidegger's philosophy had nothing to do with National Socialism. In 1961 she traveled to Jerusalem to report about Eichmann's trial for "The New Yorker". This report strongly influenced her popular recognition, and raised much controversy (see below). Her work was recognized by many awards, including the Danish Sonning Prize in 1975 for Contributions to European Civilization.