Peru has reportedly approved a plan to bring a lawsuit against Yale for the return of the Machu Picchu artifacts. BBC News story here. Paul Needham remains the go-to guy at the Yale Daily News.
The parties seemed to have resolved their differences last September, but, according to the Associated Press, that deal "fell through over a dispute over how many artifacts were to be returned."
UPDATE: Derek Fincham offers some thoughts.
UPDATE 2: You can't beat the New York Post headline writers: Peruvians Raise an Inca $tink-A.