Nearly three years after the I-35W bridge collapse on August 1, 2007, questions remain about the safety and security of the nation’s infrastructure. Do we have the systems in place to prevent large-scale, systemic failures? A University of Minnesota expert, who witnessed the collapse, can comment on U.S. infrastructure needs and challenges in the wake of the 35W bridge collapse anniversary is Massoud Amin, director, Technological Leadership Institute (TLI) and professor of electrical and computer engineering [...]