314 A growing sense of church-state conflicts marked the 14th century. 250 Use of natural family planning methods among United States Catholics purportedly is low, although the number cannot be known with certainty. As for the use of the 1962 Missal as a Forma extraordinaria of the liturgy of the Mass, I would like to draw attention to the fact that this Missal was never juridically abrogated and, consequently, in principle, was always permitted." Pope Benedict XVI "Instruction. 218 Social and cultural issues Catholic social teaching Main article: Catholic social teaching Catholic social teaching, reflecting the concern Jesus showed for the impoverished, places a heavy emphasis on the corporal works of mercy and the spiritual works of mercy, namely the support and concern. 123 Some Catholic theologians have speculated that the souls of unbaptised infants and non-Christians without mortal sin but who die in original sin are assigned to limbo, although this is not an official dogma of the church.