 Some have protested that such rules violate the United Nations Universal Declaration of Human Rights and the "freedom of thought, belief and conscience" clause in the Constitution of Japan, but the Board has argued that since schools are government agencies, their employees have an obligation to teach their students how to be good Japanese citizens.Teachers have unsuccessfully brought criminal complaints against Tokyo Governor Shintarō Ishihara and senior officials for ordering teachers to honor the "Hinomaru" and "Kimigayo".After earlier opposition, the Japan Teachers Union accepts the use of both the flag and national anthem; the smaller All Japan Teachers and Staffs Union still opposes both symbols and their use inside the school system.