eww it looks like spray foam insulation. It's shameful how many people, plants, animals, marine life, indigenous tribes and vital insects such as bees, have been poisoned in the name of 1st world domination and or "defense". We gotta do better than this. This planet is soooooooo beautiful and life is such a miracle, only evil would destroy such magnificence in the name of " its for your safety." Maybe if we all decided to make respect for all life, the number one value of human kind, and co-operated, we wouldn't need to spend trillions of dollars in nefarious global domination and defense poisons.