Pemex has a long history of alleged violation of human and labour rights regarding engineers, unrightfully considered to be "trusted workers" who have tried to unionize since 1995 and succeeded, after several repression episodes, in doing so in 2008 and 2009, although at a high human cost. This included the death of a person who was refused medical service at one of Pemex's hospitals because his son had just been sacked for belonging to this union, the Unión Nacional de Técnicos y Profesionistas (shorthand UNTyPP). It also included forcing union members to resign from the Union from their hospital beds, as happened to three cancer patients in 2009. Up to date and in spite of pressure by the Mexican Congress, the International Labour Organization, the Global Compact, the Industrial Global Union and thousands of citizens all over the world, workers fired in 2002, 2004, 2008, 2009, 2010 and 2011 haven't been all reinstated nor has there been any other reparation. Pemex has never acknowledged these violations of human rights.