Commentary from Anthony Wile, Editor of The Daily Bell: If the Euro Ends, So Will the World as We Know It? 
G.G. flagged this: The Number of Those Working Past 65 is at a Record High 
Reader S.S. in Mississippi pointed me to Wikipedia’s page on Sovereign Debt . The comparison’s of the debt levels of various nations are instructive, especially when seen as a percentage of GDP.
Kevin S. suggested this great piece that describes hyperinflation: What Is Money ? Part I