Ambassador Henry Cooper discusses the threats to the U.S. electric grid Posted on January 21, 2018January 26, 2018 by Michael Mabee Share the knowledge...TwitterFacebookLinkedinPinterestRedditemailPrintAmbassador Henry Cooper, Chairman of High Frontier, discusses the threats to the U.S. electric grid from electromagnetic pulse (EMP). Ambassador Henry Cooper Read more about EMP here. Share the knowledge...TwitterFacebookLinkedinPinterestRedditemailPrint