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Pentagon Launches Leak Investigation Using Polygraph Tests

Defense officials aim to identify and prosecute unauthorized disclosures of classified information, while addressing concerns over the reliability of polygraphs.

ARLINGTON, UNITED STATES - 2025/01/27: The Pentagon is seen from above. The Pentagon in Arlington, Virginia, is the U.S. Department of Defense headquarters and one of the world's largest office buildings. Built during World War II, it symbolizes U.S. military power. Despite its vast size, its layout allows travel between points in under 10 minutes, and it houses a memorial for 9/11 victims.
The Pentagon is seen in this aerial view through an airplane window in Washington on Thursday, Feb. 20, 2025. (AP Photo/Pablo Martinez Monsivais)
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Overview

  • The Pentagon has announced an investigation into recent leaks of national security information, with plans to use polygraph tests as part of the process.
  • A memo from Defense Secretary Pete Hegseth's chief of staff, Joe Kasper, stated that any identified leakers will be referred for criminal prosecution.
  • President Trump and Pentagon officials denied reports that Elon Musk, who recently visited the Pentagon, was briefed on U.S. military plans for a potential conflict with China.
  • Homeland Security Secretary Kristi Noem has also employed polygraph tests to identify leakers within her department, leading to the identification of two individuals for prosecution.
  • The Justice Department has launched a separate investigation into the selective leak of classified information about the Venezuelan gang Tren de Aragua.