Associated Press reports via CNN that Peru is making preparations to protect Chan Chan, a major archeological ruin on the outskirts of Trujillo, Peru. The world's largest adobe city, Chan Chan was devastated in the 1982- 1983 ENSO event. Workers are digging drainage ditches and covering ruins with plastic. Chan Chan is 28 square miles and dates from 1000 AD so only a small percentage can be protected.