It was a stunning discovery: the first unlooted imperial tomb of the Wari, the ancient civilization that built South America's earliest empire between 700 and 1000 A.D. Yet it wasn't happiness that Milosz Giersz felt when he first glimpsed gold in the dim recesses of the burial chamber in northern Peru. Giersz, an archaeologist at the University of Warsaw in Poland, realized at once that if word leaked out that his Polish-Peruvian team had discovered a 1,200-year-old "temple of the dead" filled with precious gold and silver artifacts, looters would descend on the site in droves. "I had a nightmare about the possibility," says Giersz.

Meet on the level, leave on the square. Great words to live by

Were we directed from Washington when to sow and when to reap, we should soon want bread. - Thomas Jefferson: Autobiography, 1821.