Pop-art and similar is really a reaction to abstract expressionism and as such belongs more to postmodernism. Modernism was more or less over by that time. Van

Pop-art and similar is really a reaction to abstract expressionism and as such belongs more to postmodernism. Modernism was more or less over by that time. Van Gogh, Kandinsky, Malevich, Picasso, Mondrian, Matisse etc were very far from obscure by the time the CIA was even founded.