Calling a pressure cooker a "weapon of mass destruction" instead of an IED (improvised explosive device) is nuts. The crime that they're wanting to prosecute is domestic terrorism and the resulting murders.

Using "WMD" not only domesticates the perceived danger of a Weapon of Mass Destruction (which would in theory kill a lot more people, hence the "mass destruction" part of the name), it exaggerates the charge to a point that it alone could be dismissed as overkill. (I'm not a lawyer - I dismiss it as a practitioner of the English language.) They need to tone it down and be accurate. That's sufficient to get this prosecution going and successfully completed.

SRS