Hans Kung

Hans Küng is a Swiss-born liberal theologian who served as an adviser to Pope John XXIII during Vatican II. The Catholic Church took away his license to teach Catholic theology in 1979 based on a book he wrote in 1971 that questioned papal infallibility, a disciplining that made him a cause celebre among American and European liberals.

As of 2010 he is at Tübingen. In October 2009 he obtained some publicity by criticizing Pope Benedict XVI's welcoming of conservative Anglicans as "angling in the waters of the extreme religious right."