The Pentagon's new weapon system technology chief is poised to shake up the U.S. military's research and development investment portfolio this summer with recommendations for likely increasing funding across 10 priority areas between fiscal years 2020 and 2024 in an effort to produce potentially game-changing capabilities within a decade. Michael Griffin, under secretary of defense for research and engineering, over the next six weeks is due to complete "roadmaps" that aim to marshal talent, resources, and management focus across select...