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But are things this bad? While we must of course be careful about who is released, these numbers are very likely inflated. This is in part because the Pentagon includes on the list any released prisoner who is either “confirmed” or just “suspected” to have engaged in terrorism anywhere in the world, whether those actions were directed at the United States or not. And, bizarrely, the Defense Department has in the past even lumped into the recidivist category former prisoners who have done no more than criticize the United States after their release.

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In the end, the Pentagon has given out the names of only 12 former detainees who can be independently confirmed to have taken part in terrorist acts directed at American targets, and eight others suspected of such acts. This is about 4 percent of the 534 men who have been released. Obviously, the percentage would be higher if we were able to factor in the former detainees whose names were withheld. Yet it seems fair to say that the much-hyped 14 percent figure is likely a large overstatement of former Guantánamo inmates who have taken up arms.

Now, some Americans may argue that even a 1 percent recidivism rate from Guantánamo would be too high, while others will point out that this rate compares quite favorably to that of the United States writ large, as some two-thirds of people released from prison here are rearrested within three years.

We make neither of these arguments. Rather, our point is that the Pentagon should be as accurate as possible about how many of those released pose a threat to America. This is the only way that policy makers can make informed choices about closing Guantánamo, revising military commissions, deporting or repatriating prisoners or moving them to the United States, and keeping our nation safe.