Machu Picchu risks of landslides, earthquakes and injury due to decaying structures. Nude tourism is a recent trend, to the dismay of Peruvian officials. In several incidents, tourists were detained for posing for nude pictures or streaking across the site. Peru's Ministry of Culture denounced these acts for threatening Peru's cultural heritage. Cusco's Regional Director of Culture increased surveillance to end the practice. In January 2010, heavy rain caused flooding that buried or washed away roads and railways to Machu Picchu, trapping more than 2,000 locals and more than 2,000 tourists, later airlifted out to safety. Machu Picchu was temporarily closed, reopening
Vilcabamba, Peru the site where Tupac Amaru fled after the Spanish captured Vitcos. Bingham speculated in his book Lost City of the Incas that Machu Picchu was the lost city of Vilcapampa the Old, in part because Bingham only saw a small portion of Espíritu Pampa. It remained for Gene Savoy to discover the full extent of the site in 1964, and later evidence did confirm the site was indeed the old Vilcabamba. In the 1960s, the explorations and discoveries of Antonio Santander Casselli and Gene Savoy finally associated the "Espíritu Pampa" site with the legendary Vilcabamba. Their 1970 book "Antisuyo" brought