For archeology buffs, Caral is a chance to begin at the beginning By Leslie Josephs ASSOCIATED PRESS A sudden wind gust blows eerily down from rocky Andean foothills, kicking up a cinnamon-colored cloud over the moonscape of ruins that is the oldest city in the Americas. The sky is a crisp blue. All around in the Supe River Valley are lush fields of onion and corn. We are in Caral, three hours and nearly 5,000 years from contemporary Lima, Peru's bustling capital, and we've spent the last half-hour or so on a bumpy drive from the coast, along a dirt...