I fail to understand the rationale for Yale to have any historical claim to the artifacts belonging to Machu Picchu. Bingham had no authority to transfer ownership to begin with. The agreement reflects a colonial way of thinking not expected from a modern academic institution. In fact, Yale has gone a step further than it did in its negotiations with President Toledo; the university is now brazenly asking to keep a significant part of the collection of Machu Picchu for research for an additional 99 years. http://ping.fm/ANbCu