“Scientists Attack Polygraph’s Accuracy”

Ian Hoffman reports for the Oakland Tribune. Excerpt:

Polygraph tests used by nearly every federal national-security agency as a screening tool will flag loyal workers as security risks and free actual spies from suspicion, a panel of top scientists reported Tuesday.

Gathered by the National Research Council, scientists said the theory and research supporting polygraphy is too weak and the accuracy of the test is “insufficient to justify reliance on its use in employee security screening.”

“National security is too important to be left to such a blunt instrument,” said panel chairman Stephen Fienberg, a statistics professor at Carnegie Mellon University in Pittsburgh.

Two lawmakers called on the U.S. Department of Energy to replace its polygraph screening program, targeting 16,000 employees mostly in California, New Mexico and Washington, D.C., with a testing program solely for interrogation of suspects.

Yet beyond the Energy Department and its national labs — Livermore, Los Alamos and Sandia — the polygraph is deeply embedded in the U.S. national-security apparatus, with an estimated 40,000 workers or applicants tested every year at the CIA, Defense Department, National Security Agency, Secret Service, DEA and — in the wake of the Aldrich Ames and Robert Hanssen spy cases — the FBI.

Thousands more are tested at state and local law-enforcement agencies. This summer, many in Congress who voted to polygraph nuclear weapons scientists were themselves “put on the box” in an FBI search for leaks at the Senate and House intelligence committees.

Inventors such as psychologist and feminist theorist William Moulton Marston — later known for creating Wonder Woman, whose lasso compelled truth telling — devised polygraphy to interrogate World War I spies. The polygraph became hugely popular over the next 80 years, and no one has been more captivated by its mystique than Americans and their law officers.

Yet, said NRC panelist Kathryn Laskey, a professor of systems engineering at George Mason University, “We stress that no spy ever has been caught using the polygraph.”

The conclusions of the 310-page report are not new. Scientists have criticized polygraphs as poorly grounded and researched since their creation.

The 310-page NRC report, however, is among the most comprehensive and authoritative on the subject, and the first to highlight the national security risks of growing federal reliance on a test that invariably clears the spies and saboteurs it was designed to catch.

Employees of the nation’s three nuclear-weapons labs hailed the report as powerful vindication, in large measure because it echoed their attacks on the scientific foundations of polygraphy and found them equally weak or nonexistent.

“It’s time to stop it, for everybody,” said Lawrence Livermore National Laboratory physicist Jeff Colvin, president of the Society for Professional Scientists and Engineers, a labor union.

“It doesn’t get any better than this. There’s no wiggle room here,” said Dr. Alan Zelicoff, a physicist and physician at Sandia National Laboratories in Albuquerque, N.M. “We’ve been spending millions of dollars on a test that is not worthless, but worse than worthless because it does more harm than good.”

In 1999, Congress went into a lather over suspected Chinese thefts of U.S. nuclear secrets and instituted polygraph tests for thousands of career nuclear-weapons employees. Scientists denounced the tests as “voodoo” and “junk science” that insulted their dedication to national-security work.

“You’re talking about people who for the most part are very loyal and find it terribly offensive that their loyalty is questioned,” veteran Livermore weapons designer David Dearborn said Tuesday. “Then you have an undependable piece of electronic flimflammery, and someone pops up and says ‘I think you’re being deceptive,’ and your clearance is pulled. … What are we getting as a nation in return? We’re getting political cover at best. Because if that’s the best we can do to catch spies, we’re in trouble. You’re not catching the people who are spying, and yet you are having large numbers of people suffer as they’re treated like criminals.”

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