Reuters is reporting today, in the world news, that Japan is reporting the possibility that North Korea has missiles topped with chemical weapons.
Of course they do. But I don't think it will be Sarin, I think it will be VX.
"The median lethal exposure (for VX)—the exposure required to kill half of a tested population—as estimated for 70 kg human males has been reported: the median lethal dose (LD50) via exposure to the skin is reported to be 10 mg (0.00035 oz), and the lethal concentration time (LCt50), measuring the concentration of the vapor in milligrams per cubic meter (m3) per length of time exposed in minutes, is estimated for VX to be 30–50 mg·min/m3."
--Types of Chemical Weapons: Nerve Agents [Table. Toxicological Data]: Federation of American Scientists(2013)