U.S. lawmakers, Pentagon increasingly concerned about Russian, Chinese hypersonic missiles By Samuel Culper • March 27, 2018March 27, 2018 Share this:TweetEmailPrint Related Samuel CulperSamuel Culper is a former Intelligence NCO and contractor. Iraq(x1)/Afghanistan(x2). He now studies intelligence and warfare. Join nearly 9,000 people already receiving the Forward Observer Dispatch Email Address