that displayed symbols of the cross, a rainbow and a pink triangle. The pink triangle caused particular complaints by some due to its use to identify gay men in Nazi concentration camps. Gumbleton also came into the public eye before the Vatican's Instruction with regard to the ordination of gay men was released, arguing against a ban in a 2007 issue of America. Church structure and pacifism In 2012, Gumbleton signed the Catholic Scholars' Jubilee Declaration on reform of authority in the Catholic Church. On January 14, 2020, he declared that Catholics should not participate in US wars. See also Catholic Church hierarchy Catholic Church in the United States Historical list of the Catholic bishops of the United States List of Catholic bishops of the United States Lists of patriarchs, archbishops, and bishops References External links Roman Catholic Archdiocese of Detroit Official Site Bishop Gumbleton's Biography from the Archdiocese of Detroit Bishop Gumbleton's article on the ordination of homosexuals "Interview with Bishop Thomas J. Gumbleton", Frontline, PBS Episcopal succession 1930 births Living people 20th-century American Roman Catholic titular bishops American Christian pacifists American human rights activists 21st-century American Roman Catholic titular bishops American tax resisters Clergy from Detroit Pontifical Lateran University alumni Roman Catholic activists Sacred Heart Major Seminary alumni Christian radicals Roman Catholic Archdiocese of Detroit Religious leaders from Michigan