Scientists invented chemical weapons; some are now working to destroy them. New biomolecular design techniques let researchers design proteins that can destroy nerve agents in bodies.
The characteristics of chemical weapons also make them weapons of terror. They do not only injure the body. The threat of chemical weapons harms the minds of soldiers and civilians.
A precise, lethal chemical weapon hit in a foreign capital is a reminder that North Korea knows what it's doing.
Using nerve agents is banned under the Chemical Weapons Convention, but North Korea is not a party to it.
Don't forget to wash your hands.