I call this reporting crap. According to the U.N. inspectors and WMD experts the mustard gas was the only agent of those listed that had a shelf life that could keep it useful by 2003. It's now 2014 and it has probably degraded even more. Agents like sarin probably expired far before 03. In fact the WMD facility at Muthanna was known to have taken short cuts in the production of agents which made them have an even shorter life than usual.