"Since ratifying the Chemical Weapons Convention in 1997, through last Friday, the United States destroyed over 30,000 metric tons of declared chemical agent contained in nearly three and a half million chemical munitions, over 22,500,110, one-ton containers containing chemical agent, and over 55,500 bottles and containers containing chemical agent," said Deputy Assistant Secretary of Defense Kingston Reif.
To overcome the learning losses, the NWEA suggests that an additional 4.5 months of math and 4.1 months of reading instruction would be required for students.