... beginning with the weight reduction of systems and subsystems and leading to improved mobility, survivability, and lethality, while also offering significant capital and operating and maintenance ... the independent committee investigating the disaster involving the space shuttle Columbia highlighted the importance of institutional culture in its findings, pointing to the self-protective ... improving survivability and mobility. The evaluation and prioritization of competing objectives, and, ultimately, how decisions are made, are increasingly complex. In general, the chain of command...