What about stories like http://www.journalnow.com/news/local/article_bce53c4c-d7ea-5d6f-a030-9455f8f2a68c.html  or http://www.aoc.state.nc.us/www/public/coa/opinions/2002/unpub/010651-1.htm where a Molotov cocktail is as an incendiary device is a WMD.