What I said was "There is nothing outlandish about thinking that perhaps something could be classified as a WMD and was discovered in the last four years under Obama."
Finding a Scud missile or a particularly large bomb is ALL that would be needed for the Obama Administration to claim a WMD was found.
When you don't have the evidence to meet the definition - you change the definition (thats at least if you work for the government).
Its PERFECTLY credible that something found could be newly defined as a WMD - and these people were told that something meeting that criteria was found. THATS credible.