THE BURNED OVER DISTRICT

Once again the sharp minds running the Pentagon have covered up problems arising from the unholy use of chemicals in war. This time is was the problems that arose from the disposal of Saddam's chemical weapons in Iraq. And once again the troops involved are kept from the treatment they deserve.

The United States had gone to war declaring it must destroy an active weapons of mass destruction program. Instead, American troops gradually found and ultimately suffered from the remnants of long-abandoned programs, built in close collaboration with the West.

The New York Times found 17 American service members and seven Iraqi police officers who were exposed to nerve or mustard agents after 2003. American officials said that the actual tally of exposed troops was slightly higher, but that the government’s official count was classified.

The secrecy fit a pattern. Since the outset of the war, the scale of the United States’ encounters with chemical weapons in Iraq was neither publicly shared nor widely circulated within the military. These encounters carry worrisome implications now that the Islamic State, a Qaeda splinter group, controls much of the territory where the weapons were found.

The American government withheld word about its discoveries even from troops it sent into harm’s way and from military doctors. The government’s secrecy, victims and participants said, prevented troops in some of the war’s most dangerous jobs from receiving proper medical care and official recognition of their wounds.

“I felt more like a guinea pig than a wounded soldier,” said a former Army sergeant who suffered mustard burns in 2007 and was denied hospital treatment and medical evacuation to the United States despite requests from his commander.

Congress, too, was only partly informed, while troops and officers were instructed to be silent or give deceptive accounts of what they had found. “ 'Nothing of significance’ is what I was ordered to say,” said Jarrod Lampier, a recently retired Army major who was present for the largest chemical weapons discovery of the war: more than 2,400 nerve-agent rockets unearthed in 2006 at a former Republican Guard compound.

Jarrod L. Taylor, a former Army sergeant on hand for the destruction of mustard shells that burned two soldiers in his infantry company, joked of “wounds that never happened” from “that stuff that didn’t exist.” The public, he said, was misled for a decade. “I love it when I hear, ‘Oh there weren’t any chemical weapons in Iraq,’ ” he said. “There were plenty.”

The secrecy may have some value, but the failure to track the soldiers involved and insure proper medical treatment is just another example of the failure of the military to deal with the mess it causes.