[Right Wing Professor]

I'm not allowed to refer to several of those organizations. You know, membership rules, and all. Don't want to come home and find a black helicopter hovering around the house, and horrible pink foam around the mouths of the dead livestock.

[VadeRetro]

... horrible pink foam around the mouths of the dead livestock.

OMG! We forgot the UFOs and crop circles!!!

[Ichneumon]

and horrible pink foam around the mouths of the dead livestock

I've done extensive research and tracked it down to its nefarious source:

I missed the license plate number of the UFO which dropped off the shipment, though.