10/14/2014 09:53 pm ET

The Secret U.S. Casualties Of Iraq's Abandoned Chemical Weapons

The soldiers at the blast crater sensed something was wrong.

It was August 2008 near Taji, Iraq. They had just exploded a stack of old Iraqi artillery shells buried beside a murky lake. The blast, part of an effort to destroy munitions that could be used in makeshift bombs, uncovered more shells.

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