VIDEO: James Carafano and William Graham explain the danger of an electromagnetic pulse (EMP). Posted on July 8, 2010December 17, 2017 by Michael Mabee Share the knowledge...TwitterFacebookLinkedinPinterestRedditemailPrintIn a segment for “33 Minutes,” James Carafano and William Graham explain the danger of an electromagnetic pulse (EMP). Uploaded on YouTube July 8, 2010 by EMPAct America William Graham James Carafano Share the knowledge...TwitterFacebookLinkedinPinterestRedditemailPrint