Working with his students, Butz twice soaked the samples in a weak solution of hydrochloric acid to remove any contemporary soot stains.

WSJ: NY teacher delves into mystery of 'Indian Ovens'

Even if a Greek solution can be found, Ireland and Portugal are still weak.

ECONOMIST: The threat of a Greek exit: Unhappy in their own ways | The

In campaigning for this week's election he poured cold water on the idea of a two-state solution, arguing that the moderate Palestinians are for the foreseeable future too weak to be good neighbours if Israel were to pull its soldiers and settlers out of the West Bank.

ECONOMIST: Israel and the Arabs