The Comment discusses the procedure by which States Parties may express reservations to the International Covenant on Civil and Political Rights. Reservations made by States Parties that are discriminatory will not be accepted. States cannot reserve the right to practice slavery, torture, the execution of pregnant women and children, or the advocacy of national, racial or religious hatred; nor may they reserve the right to restrict the rights of minorities to maintain their culture or to restrict freedom of religion. It is the Committee's duty to review each and every reservation for approval.