are also joined by kathleen sprows cummings, a historian of catholicism who teaches at the university of notre dame. mr. kmiec, i would like it to start with you, with that leer, ae very tough words in that letter.o you talked a the catastrophic skill, scale, the historic magtude of the abuse. why ask for all the u.s. bishops to submit their resnations to pope francis. >> well, because we really need to have a clean slate. we need to have act of con trigs as it were that is felt and actually has an effect upon s direction. if you think about this, john, there are three levels to correcting. one is the parish level where the abuse occurs. e is the episcopal level, the aadership of the church in terms of bishod archbishops and cardinals. and there is the highest level of all, the pope in the vatican. each one of those levels has to be addressed. but there is oyoing to happen if the church owns up to the proem being a systemic, cultural problem within its own traditions. and that requires the resignation of all of the thiscopet giving the holy the opportunity to keep those who have maintained the fait