Huerta attempted to build further support for his government, and the urban working class in Mexico City made important gains before being suppressed. In particular, the leftist Casa del Obrero Mundial (House of the World Worker). The Casa organized demonstrations and strikes, which the Huerta regime initially tolerated. But then the government cracked down, arresting and deporting some leaders, and destroying the Casa's headquarters. Huerta also sought to diffuse agrarian agitation, which fueled the rebellion in Morelos led by Emiliano Zapata. The most vocal intellectual in favor of land reform was Andrés Molina Enríquez, whose 1909 publication "Los grandes problemas nacionales" (The Great National Problems) focused on inequality of land tenure. Molina Enríquez joined the Huerta government heading the Department of Labor. He had denounced the overthrow of Madero, but "initially saw in the Huerta regime the political formula he believed Mexico required: a strong military leader capable of imposing the social reforms Mexico needed to benefit the masses." However, despite internal support in the Huerta regime for reform, Huerta increasingly embraced militarization and Molina Enríquez resigned.