Other estimates state at least 1%. Christians, Protestants at least 2%. Catholics, about 1%. Statistics relating to Buddhism and religious Taoism are to some degree incomparable with statistics for Islam and Christianity. This is due to the traditional Chinese belief system which blends Confucianism, Buddhism, and Taoism, so that a person who follows a traditional belief system would not necessarily identify him- or herself as exclusively Buddhist or Taoist, despite attending Buddhist or Taoist places of worship. According to Peter Ng, Professor of the Department of Religion at the Chinese University of Hong Kong, , 95% of Chinese were religious in some way if religion is considered to include traditional folk practices such as burning incense for gods or ancestors at life-cycle or seasonal festivals, fortune telling and related customary practices. The U.S. State Department has designated China as a "country of particular concern" since 1999, in part due to the scenario of Uighur Muslims and Tibetan Buddhists. Freedom House classifies Tibet and Xinjiang as regions of particular repression of religion, due to concerns of separatist activity. Heiner Bielefeldt, the UN Special Rapporteur on Freedom of Religion or Belief, says that China's actions against the Uighurs are "a major problem". The Chinese government has protested the report, saying the country has "ample" religious freedom. Cuba Until 1992, Cuba was officially an atheist state. In August 1960, several bishops signed a joint pastoral letter condemning communism and declaring it incompatible with Catholicism, and calling on Catholics to reject it. Fidel Castro gave a four-hour long speech the next day, condemning priests who serve "great wealth" and using fears of Falangist influence in order to attack Spanish-born priests, declaring "There is no doubt that Franco has a sizeable group of fascist priests in Cuba." Originally more tolerant of religion, the Cuban government began arresting many believers and shutting down religious schools after the Bay of Pigs Invasion. Its prisons were being filled with clergy since the 1960s. In 1961, the Cuban government confiscated Catholic schools, including the Jesuit school that Fidel Castro had attended. In 1965 it exiled two hundred priests. In 1976, the Constitution of Cuba added a clause stating that the "socialist state...bases its activity on, and educates the people in, the scientific materialist concept of the universe". In 1992, the dissolution of the Soviet Union led the country to declare itself a secular state. Pope John Paul II contributed