Belgium’s prime minister blasted Pope Francis for the Catholic Church’s horrific legacy of clerical sex abuse and cover-ups here, demanding “concrete steps” to come clean with the past and put victims’ interests ahead those of the institution in a blistering welcome at the start of Francis’ visit on Friday.

During a trip to Luxembourg and Belgium, Francis will spend an hour meeting with 15 people who were abused by Roman Catholic clergy. Survivors say it is not enough.