“Defending the French” guy writes:

The French labelling on the barrels shown on MSNBC is “produit d’urgence,” which translates roughly as “emergency product.”
I’m not a chem weapons expert, but the term is a relatively common one in the civilian world. It applies to things as diverse as contraception – the so-called ‘morning after’ pill is a ‘produit d’urgence’ – to a special spackle for large-scale leaks. It also applies to some emergency treatments for chemical burns. I have no idea one way or another whether any pesticides are considered “produits d’urgence.”