Original sentence: Niall Ferguson wrote in 2010 that "the sovereign debt crisis that is unfolding...is a fiscal crisis of the western world"
Edited sentence: As Samuel Brittan points out , Jason Manolopoulos shows conclusively that the eurozone is far from an optimum currency area.Niall Ferguson also wrote in 2010 that "the sovereign debt crisis that is unfolding...is a fiscal crisis of the western world".This is the first eurozone crisis since its creation in 1999