'We should never go back', Macron, May say on chemical weapons

French President Emmanuel Macron and British Prime Minister Theresa May on Sunday urged the world to keep up the fight against chemical weapons on the anniversary of an international convention banning their use."On the 21st anniversary of the Chemical Weapons Convention, and following Douma and Salisbury, Theresa May and I call with one voice for the world to join us in upholding the vital global prohibition on chemical weapons use," Macron tweeted in English and French, referring to recent che