The Tricky Ethics of Intergalactic Colonization
• http://www.wired.com, By Charles C. MannBetween 1405 and 1433, Zheng set out from China on massive naval expeditions that reached as far as Mecca and Mombasa, journeys with more than 300 vessels and 28,000 crew, excursions far bigger and longer than those of Columbus more than a half centu
