Original sentence: Robertson (1928-) is responsible for the structural design of hundreds of buildings and structures around the world including the now destroyed World Trade Center (New York), the United States Steel Headquarters (Pittsburgh), the Bank of China Tower (Hong Kong), Puerta de Europa (Madrid) and the Continental Arena (Meadowlands), as well as museums in Berlin, Portland (Maine) and Seattle, and the Miho Museum Bridge (Japan).Robertson, in the early 1960s, was a leader of a young group of structural engineers who specialized in imaginative, and daring, approaches to grand-scale construction.Since then, questions about the safety of his rent-space-maximized designs have engaged the profession (see Collapse of the World Trade Center), and future supertall architecture will most likely turn to stronger, more fortified materials and methods.Until the September 11, 2001 attacks, his innovations were held in high regard by most of his practicing peers
Edited sentence: A pioneer in the application of computers to design, he has advanced the art and the science of structural engineering theory.Robertson (1928-) is responsible for the structural design of hundreds of buildings and structures about the world including the World Trade Center (New York), the United States Steel Headquarters (Pittsburgh), the Bank of China Tower (Hong Kong), Puerta de Europa (Madrid) and the Continental Arena (Meadowlands) as well as exceptional museums in Berlin, Portland (Maine) and Seattle, and the Miho Museum Bridge (Japan).Robertson has set new standards in the design and construction of tall buildings.Robertson's work on skyscrapers, domes, bridges and long-span roofs has transformed engineering theory into practical technological breakthroughs that free architects to build the stuff of dreams.With his innovations in structural engineering, Mr