This story from LGF and this bit by Lind seems to suggest that maybe Fallujah in your home town might not be that far off. I suggested as much in both written and verbal formats, though like Lind I was focusing on different perps and victims. Domestic reporting indicates that the raw materials are readily available (to the baddies) in bulk and if there isn’t a Jihadist Web site (or old Army FM) with the requisite know-how online I’d be surprised.
Consider this your friendly neighborhood threat warning report . . . I elaborate at ThreatsWatch.