"The gas is believed to be phosgene" As published around 5am by BBC News online, removed from later versions It was just last month (November 11th) that world leaders from some 80 nations gathered at the Arc de Triomphe to commemorate the end of World War I. It was reported earlier this morning that its believed a battlefield gas from World War I, phosgene, is being used in that same area against the "yellow vest" protesters today. An account on the BBC website saying that was published around 5am Eastern, but a later version did not mention it.....