Even as current conflicts emphasize lower-technology systems like small drones, development continues on high-end technologies. Hypersonics, directed energy, advanced missiles, and more. We get the state of play — and a broad look at DoD’s science and technology enterprise — from former Air Force chief scientist Dr. Mark Lewis, now Chief National Security Officer at Purdue University. And a remembrance of the 20th Air Force Secretary, Jim Roche. Plus the week’s top airpower headlines. Powered by GE Aerospace!