FILE - This is a Monday, April 30, 2001 file photo of a few of the 17,000 150mm artillery shells containing GB nerve gas remain in one of the igloos used to store the chemical weapons at the Deseret ... more 
FILE - This is a Monday, April 30, 2001 file photo of a few of the 17,000 150mm artillery shells containing GB nerve gas remain in one of the igloos used to store the chemical weapons at the Deseret Chemical Depot in Tooele, Utah. U.N. inspectors have confirmed Monday Sept. 16, 2013 they found "clear and convincing evidence" of a sarin nerve gas attack in Syria last month, adding urgency to moves to neutralize the country’s stock of chemical weapons. Only seven countries worldwide have formally admitted stockpiling chemical weapons and all are in the process of destroying them or have completed destruction. (AP Photo/Douglas C. Pizac, File) less 
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Associated Press | Photo By Douglas C. Pizac, File
Mon, Sep 16, 2013 1:27 PM EDT