Kristi Noem’s acting security agency head reportedly failed a lie-detector test required to view sensitive spy materials—then blamed his subordinates and suspended them. Madhu Gottumukkala, the acting ...

Madhu Gottumukkala, the acting director of the Cybersecurity and Infrastructure Security Agency, failed a polygraph ...

The results of a lie detector can sometimes be confused by medical conditions, anxiety levels, or natural body differences.

Federal agencies have stepped up their efforts over the past few weeks to find potential leakers, and some — like the FBI, the Department of Homeland Security and the Department of Defense — are ...