"Don't tread on me."
It is just a design on the serpent skin (taken from the USMC Gadsden flag)
"Paper or Plastic"? :0
Reference to story I heard yesterday that someone is putting Arabic signs up in New York I think with banal phrases on them, to "raise awareness".
One of the phrases was "Paper or Plastic", and I immediately thought "Paper", because plastic explosives are a lot more powerful.