In mid-2002 , over 4,000 munitions in the U.S. chemical stockpile were found to be leaking agent ; of that number 2,102 were Sarin containing M55s .
M55 rockets containing GB have accounted for the majority of leaking American chemical weapons .
In mid-2002 , over 4,000 munitions in the American chemical stockpile were found to be leaking agent ; of that number 2,102 were Sarin containing M55s .
M55 rockets containing GB have accounted for the majority of leaking American chemical weapons .