Steven H. Walker Appointed 21st DARPA Director November 8, 2017/Client: Darpa.mil /by spireco1 spireco1 https://spirecommunications.com/wp-content/uploads/2017/12/SpireLogo-300x138.png spireco12017-11-08 20:53:302018-01-26 19:47:09Steven H. Walker Appointed 21st DARPA Director