THE MUSEUM LUDWIG in Cologne and the Museu d’Art Contemporani de Barcelona recently put their American counterparts to shame by co-organizing the first major exhibition of George Brecht’s work in twenty-eight years (the previous show was also in Europe and, like the current one, was labeled a “heterospective” by the artist). From a purely nationalistic point of view, the lack of even one US venue at first seems rather odd, if not scandalous: After all, even though Brecht has been living in Cologne since 1971, he was born George MacDiarmid eighty years ago in New York, and he counts as one of