Leaked Documents Further Confirm Polygraph Community’s Inability to Detect Sophisticated Countermeasures
In September 2014, retired Defense Intelligence Agency counterintelligence agent Scott W. Carmichael accused Donald Krapohl, then the number two official at the National Center for Credibility Assessment (NCCA, the federal government’s polygraph school), of violating the Espionage Act by indirectly making classified information about the U.S. government’s methodology for polygraph countermeasure detection available to the …