CDC list of all chemical agents	http://www.bt.cdc.gov/agent/agentlistchem.asp
Ricin	http://www.bt.cdc.gov/agent/ricin/index.asp
Sarin	http://www.bt.cdc.gov/agent/sarin/index.asp
Sulfur/Mustard Gas   VX	http://www.bt.cdc.gov/agent/plague/index.asp   http://www.bt.cdc.gov/agent/vx/index.asp