Thank you. I think the thing that has everyone worried is that he obviously sees some international entity with enforcement powers as the solution to all problems.
When you consider that one of Pope Benedict's encyclicals stated that (and I quote)
I think you can understand the worry.In the face of the unrelenting growth of global interdependence, there is a strongly felt need, even in the midst of a global recession, for a reform of the United Nations Organization, and likewise of economic institutions and international finance, so that the concept of the family of nations can acquire real teeth.
-- Paragraph 67 of Caritas in Veritate, from the thread Encycli-bites for reading “Caritas in veritate”