In this Late City Edition feature, producer Naomi Cohen moderated a round-table discussion on mining and oil drilling -- also known as extraction -- in Latin America. She sat down with Lisa Sachs, Director of the Vale Columbia Center on Sustainable International Investment; Chris Santiago, a Phd candidate in Columbia University's Anthropology Department who is researching the protests in Cajamarca, Peru against gold mining; and Nicolas Chango, the last leader of his tribe in Salasaca, Ecuador and a speaker on indigenous rights issues.