 The case for circumscribing sovereignty remains strong in the Catholic and other Christian traditions. Pope Benedict XVI made a case for the Responsibility to Protect, for instance, in his 2008 speech to the United Nations. In recent years, political philosophers in the liberal tradition have argued for the circumscription of sovereignty as well. Two examples are Thomas Pogge (1992, and 2008, 174–201) and Allen Buchanan (2004). Both accord sovereignty an important but not an absolute moral status, seeking to make room for possibilities such as humanitarian intervention approved by the United Nations and the more robust development of global institutions for fighting poverty.