ANNISTON, Ala. (AP) — The Pentagon spent $10.2 billion over three decades burning tons of deadly nerve gas and other chemical weapons stored in four states — some of the agents so deadly even a few drops can kill.

Now, with all those chemicals up in smoke and communities freed of a threat, the Army is in the middle of another, $1.3 billion project: Demolishing the incinerators that destroyed the toxic materials.

In Alabama, Oregon, Utah and Arkansas, crews are either tearing apart multibillion-dollar incinerators or working to draw the curtain on a drama that began in the Cold War, when the United States and the former Soviet Union stockpiled millions of pounds of chemical weapons.

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