Peru has unveiled a new conservation plan for Machu Picchu. The plan includes restricting the number of visitors. “With the defeat of the Shining Path terrorist movement in the 1990s, Peru has been “rediscovered” by the international tourism industry and the hordes of visitors are causing erosion and other damage to the archaeological site which extends over some 76,000 acres. In addition, mummies dating from the Inca period are being exposed to the elements and wild orchids are threatened by the increasing pollution.”