Timeline: A history of sarin

Published On: Dec 24 2013 04:01:00 AM CST   Updated On: Sep 16 2013 10:24:47 AM CDT
scientist doing experiment, medicine, chemistry

A United Nations report due out Monday is expected to say say the perpetrators of last month's chemical weapons attack in Syria had up to 350 liters of sarin gas Look back at the history of sarin, a man-made nerve agent.