Without an objective international investigation of what happened in Khan Sheikhoun, and in a

The chilling scenes from Syria of victims twitching and gasping for air after chlorine cylinders were dropped from helicopters in towns and villages were broadcast over and over in the course of country's civil war. Legal and moral taboos were shattered.... Hundreds were killed, including many children, in dozens of poison gas attacks widely blamed on President Bashar Assad’s forces under the protection of his chief ally, Russian President Vladimir Putin.... The conflict simply explained Sign