Callous though it may sound, the needle on the horror-meter has not yet gone high enough.
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William Hague has revealed that he had seen "some evidence" that Syria is preparing to use chemical weapons against rebels.
The Foreign Secretary d...
Mustard gas is actually not a gas but a thick viscous liquid that can remain on the ground for years when conditions are right. The chemical releases a vapour that is either odourless or smells of mustard depending on the purity of the liquid.
The chemistry of the First World War proved to be a double-edged sword. It not only killed, maimed, and destroyed, it also helped to protect troops and heal the sick and wounded.