Nuns have suffered and are still suffering sexual abuse at the hands of Catholic priests and bishops, and have even been held as sexual slaves, Pope Francis confirmed on Tuesday. The abuse was so severe in one case that an entire congregation of nuns was dissolved by former Pope Benedict. The scope of the abuse of nuns by clergy members first came to light with the publication at the beginning of February of the monthly Vatican magazine "Women Church World." The edition included Francis' own take on the scandal -- long known about by the Vatican but virtually never discussed...