Architecture: Punctured Balloon

What might have been the most innovative building ever to grace an international exposition will not open at Expo 70 in Osaka, Japan, two years from now. The United States Pavilion, a spherical, 130-ft. air structure commissioned last October by the U.S. Information Agency, is the casualty of a $6,000,000 congressional cut in appropriations for the exhibit. Expo Chief Architect Kenzo Tange calls it "an incalculable loss that will hopelessly upset Expo's overall plans."

Tange, who designed Tokyo's Olympic stadium, had laid out a trunk-and-branch design for the 815-acre site; the U.S....