Ah, I see. No nation has sovereignty over its own history, property, or anything else except these United States. Especially if another nation does not have the ability to fund research of its own history at the time? I do so love ardent nationalism.
I think there are plenty of other Inca ruins for Peru to dig up and stop trying to get a freebie off of Yale. My guess would be with modern overflights with radar and infrared cameras they can find more than they can ever properly excavate. I see Yankee bashing going on