WASHINGTON, May 26 -- Personnel changes in public policy organizations, colleges and government agencies - May 22, 2025: * * * In Government Winchell Named Director of DARPA, Bringing Expertise in AI and Autonomy Stephen Winchell has been appointed as the 24th Director of the Defense Advanced Research Projects Agency (DARPA). A physicist, AI and autonomy expert, and U.S. Navy Reserve commander, Winchell previously led DARPA's artificial intelligence and autonomy portfolio. His extensive back more ST