article_snippet: No more: Congress passed a law in 1972 known as the Marine Protection, Research and Sanctuaries Act prohibiting this kind of dumping.
article_snippet: 90% of the U.S. stockpile -- 30,500 tons -- was destroyed by the treaty date in 2012 at depots in Alabama, Arkansas, Indiana, Maryland, Oregon, Utah and Johnson Atoll in the Pacific.
article_snippet: 90% of the U.S. stockpile -- 30,500 tons -- -- is at two sites in Colorado and Kentucky.
article_snippet: Don't burn 90% of the U.S. stockpile -- 30,500 tons --: Residents in Colorado and Kentucky Kentucky protested the use of incineration to get rid of the chemical weapons stockpile.
article_snippet: The process of neutralization was adopted.