U.S. News and Word Report has again placed MIT’s graduate program in engineering at the top of its annual rankings. The Institute has held the No. 1 spot since 1990, when the magazine first ranked such programs. The MIT Sloan School of Management also placed highly. It occupies the No. 4 spot for the best graduate business programs, tied with Harvard University. Among individual engineering disciplines, MIT placed first in six areas: aerospace/aeronautical/astronautical engineering, chemical engineering, computer engineering, electrical/electronic/communications engineering, materials engineering, and mechanical engineering. It placed second in nuclear…