Analysis: No tripwire making government debts "unsustainable"

LONDON (Reuters) - If doubts about U.S. government credit quality and the country's long-term growth horizon have seen its 10-year borrowing costs fall by a third, it's a wonder anyone pays heed to ideas of "unsustainable" sovereign debts.

Source: http://news.yahoo.com/analysis-no-tripwire-making-government-debts-unsustainable-062602810.html

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