How Iran enables Syria’s chemical warfare against civilians
Tehran built equipment to produce ‘hundreds of tons of precursors for VX, sarin and mustard gas.
A man breathes through an oxygen mask as another one receives treatments, after what rescue workers described as a suspected gas attack in the town of Khan Sheikhoun in rebel-held Idlib, Syria April 4, 2017(photo credit: REUTERS)ByBENJAMIN WEINTHALUpdated: