"Japan really has a long-term debt problem, " said Franklin Allen, a professor at the Wharton School at the University of Pennsylvania.

NPR: Japan Gyrations Underline Economy's Vulnerability

Old bonds will be exchanged for new bonds, but according to Professor Costas Lapavitsas at the School of Oriental and African Studies in London, the new debt will be made subject to British law so the Greek parliament cannot change that the payment terms.

FORBES: Eurocrisis: Yet More Problems in Greece

The rising national debt and federal spending are major factors behind the anger, added Larry Sabato, a political science professor at the University of Virginia.

CNN: STORY HIGHLIGHTS