In this interview, done in August 2017 with Steve Koob for the radio program "One More Soul," Kwasniewski covers a wide variety of topics: the original Liturgical Movement and the radicalization of it after World War II; liturgical experimentation in Europe and America prior to the Council; the "four-hymn sandwich"; the rationale behind the movement for reform; the damage caused by large-scale rapid change; the spectrum of opinion among the bishops who attended the Council and the general lack of desire for or interest in a major reform; Sacrosanctum Concilium as a compromise document; how the implementation of Vatican II ignored the traditional elements and pushed the most radical ideas; the error of antiquarianism; comparison and contrast between the traditional movement and the ROTR; versus populum as an "anthropocentric turn" that eviscerates the nature of liturgy as such; why it is appropriate that the priest be emphatically shown as a mediator between the people and God; some final comments on the Virgin Mary as the supreme "liturgist."