Prions

Prions: Microscopic particles made of protein that can cause disease.
Prior Appropriation: A doctrine of water law that allocates the rights to use water on a first-come, first-served basis.

Some other research bears out Kelleher's claims; though blaming all of the increase in Alzheimer's on rampant prions might be pushing it. Dr.

See also: Plastics, Environmental, Paper, Waste, Proteins